16Mx64 bits
PC100 SDRAM SO DIMM
based on 16Mx16 SDRAM with LVTTL, 4 banks & 8K Refresh
This document is a general product description and is subject to change without notice. Hynix Semiconductor does not assume any responsibility for use
of circuits described. No patent licenses are implied.
Rev. 0.1/Apr. 02 1
HYM72V16M656BTU6 Series
DESCRIPTION
The HYM72V16M656BTU6 Series are 8Mx64bits Synchronous DRAM Modules. The modules are composed of four 16Mx16bits
CMOS Synchronous DRAMs in 400mil 54pin TSOP-II package, one 2Kbit EEPROM in 8pin TSSOP package on a 144pin glass-epoxy
printed circuit board. Two 0.33uF and one 0.1uF decoupling capacitors per each SDRAM are mounted on the PCB.
The HYM72V16M656BTU6 Series are Dual In-line Memory Modules suitable for easy interchange and addition of 128Mbytes mem-
ory. The HYM72V16M656BTU6 Series are fully synchronous operation referenced to the positive edge of the clock . All inputs and
outputs are synchronized with the rising edge of the clock input. The data paths are internally pipelined to achieve very high bandwidth.
FEATURES
• PC100MHz support
• 144pin SDRAM Micro SO DIMM
• Serial Presence Detect with EEPROM
• 1.18” (30.00mm) Height PCB with double sided com-
ponents
• Single 3.3±0.3V power supply
• All device pins are compatible with LVTTL interface
• Data mask function by DQM
• SDRAM internal banks : four banks
• Module bank : one physical bank
• Auto refresh and self refresh
• 8192 refresh cycles / 64ms
• Programmable Burst Length and Burst Type
- 1, 2, 4 or 8 or Full page for Sequential Burst
- 1, 2, 4 or 8 for Interleave Burst
• Programmable CAS Latency ; 2, 3 Clocks
ORDERING INFORMATION
Part No. Clock
Frequency
Internal
Bank Ref. Power SDRAM
Package Plating
HYM72V16M656TU6-8 125MHz
4 Banks 4K
Normal
TSOP-II Gold
HYM72V16M656TU6-P 100MHz
HYM72V16M656TU6-S 100MHz
HYM72V16M656TU6-8 125MHz
Low PowerHYM72V16M656TU6-P 100MHz
HYM72V16M656TU6-S 100MHz
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 2
HYM72V16M656BTU6 Series
PIN DESCRIPTION
PIN PIN NAME DESCRIPTION
CK0, CK1 Clock Inputs The system clock input. All other inputs are registered to the SDRAM on the
rising edge of CLK
CKE0 Clock Enable Controls internal clock signal and when deactivated, the SDRAM will be one
of the states among power down, suspend or self refresh
/S0 Chip Select Enables or disables all inputs except CK, CKE and DQM
BA0, BA1 SDRAM Bank Address Selects bank to be activated during /RAS activity
Selects bank to be read/written during /CAS activity
A0 ~ A12 Address Row Address : RA0 ~ RA12, Column Address : CA0 ~ CA8
Auto-precharge flag : A10
/RAS, /CAS, /WE Row Address Strobe, Column
Address Strobe, Write Enable
/RAS, /CAS and /WE define the operation
Refer function truth table for details
DQM0~DQM7 Data Input/Output Mask Controls output buffers in read mode and masks input data in write mode
DQ0 ~ DQ63 Data Input/Output Multiplexed data input / output pin
VCC Power Supply (3.3V) Power supply for internal circuits and input buffers
VSS Ground Ground
SCL SPD Clock Input Serial Presence Detect Clock input
SDA SPD Data Input/Output Serial Presence Detect Data input/output
NC No Connection No connection
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 3
HYM72V16M656BTU6 Series
PIN ASSIGNMENTS
FRONT SIDE BACK SIDE FRONT SIDE BACK SIDE
PIN NO. NAME PIN NO. NAME PIN NO. NAME PIN NO. NAME
1 VSS 2 VSS 71 NC 72 NC
3DQ04DQ3273 NC74*CK1
5 DQ1 6 DQ33 75 VSS 76 VSS
7DQ28DQ3477 NC78NC
9 DQ3 10 DQ35 79 NC 80 NC
11VCC12VCC81VCC82VCC
13 DQ4 14DQ3683DQ1684DQ48
15 DQ5 16DQ3785DQ1786DQ49
17 DQ6 18DQ3887DQ1888DQ50
19 DQ7 20DQ3989DQ1990DQ51
21 VSS 22 VSS 91 VSS 92 VSS
23 DQM0 24 DQM4 93 DQ20 94 DQ52
25 DQM1 26 DQM5 95 DQ21 96 DQ53
27 VCC 28 VCC 97 DQ22 98 DQ54
29 A0 30 A3 99 DQ23 100 DQ55
31 A1 32 A4 101 VCC 102 VCC
33 A2 34 A5 103 A6 104 A7
VSS 36 VSS 105 A8 106 BA035
37 DQ8 38 DQ40 107 VSS 108 VSS
39 DQ9 40 DQ41 109 A9 110 BA1
41 DQ10 42 DQ42 111 A10/AP 112 A11
43 DQ11 44 DQ43 113 VCC 114 VCC
45 VCC 46 VCC 115 DQM2 116 DQM6
47 DQ12 48 DQ44 117 DQM3 118 DQM7
49 DQ13 50 DQ45 119 VSS 120 VSS
51 DQ14 52 DQ46 121 DQ24 122 DQ56
53 DQ15 54 DQ47 123 DQ25 124 DQ57
55 VSS 56 VSS 125 DQ26 126 DQ58
57 NC 58 NC 127 DQ27 128 DQ59
59 NC 60 NC 129 VCC 130 VCC
Voltage Key 131 DQ28 132 DQ60
133 DQ29 134 DQ61
61 CK0 62 CKE0 135 DQ30 136 DQ62
63 VCC 64 VCC 137 DQ31 138 DQ63
65 /RAS 66 /CAS 139 VSS 140 VSS
67 /WE 68 NC 141 SDA 142 SCL
69 /S0 70 NC 143 VCC 144 VCC
Note : * CK1 are connected with termination R/C (Refer to the Block Diagram)
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 4
HYM72V16M656BTU6 Series
BLOCK DIAGRAM
Note : 1. The serial resistor values of DQs are 10ohms
2. The padding capacitance of termination R/C for CK1 is 10pF
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 5
HYM72V16M656BTU6 Series
SERIAL PRESENCE DETECT
BYTE
NUMBER
FUNCTION
DESCRIPTION
FUNCTION VALUE NOTE
-8 -P -S -8 -P -S
BYTE0 # of Bytes Written into Serial Memory at Module Manu-
facturer 128 Bytes 80h 80h
BYTE1 Total # of Bytes of SPD Memory Device 256 Bytes 08h 08h
BYTE2 Fundamental Memory Type SDRAM 04h 04h
BYTE3 # of Row Addresses on This Assembly 13 0Dh 0Dh 1
BYTE4 # of Column Addresses on This Assembly 9 09h 09h
BYTE5 # of Module Banks on This Assembly 1 Bank 01h 01h
BYTE6 Data Width of This Assembly 64 Bits 40h 40h
BYTE7 Data Width of This Assembly (Continued) - 00h 00h
BYTE8 Voltage Interface Standard of This Assembly LVTTL 01h 01h
BYTE9 SDRAM Cycle Time @/CAS Latency=3 8ns 10ns 10ns 80h A0h A0h
BYTE10 Access Time from Clock @/CAS Latency=3 6ns 6ns 6ns 60h 60h 60h
BYTE11 DIMM Configuration Type None 00h
BYTE12 Refresh Rate/Type 7.8125us
/ Self Refresh Supported 82h
BYTE13 Primary SDRAM Width x16 10h
BYTE14 Error Checking SDRAM Width None 00h
BYTE15 Minimum Clock Delay Back to Back Random Column
Address tCCD = 1 CLK 01h
BYTE16 Burst Lenth Supported 1,2,4,8,Full Page 8Fh 2
BYTE17 # of Banks on Each SDRAM Device 4 Banks 04h
BYTE18 SDRAM Device Attributes, /CAS Lataency /CAS Latency=2,3 06h
BYTE19 SDRAM Device Attributes, /CS Lataency /CS Latency=0 01h
BYTE20 SDRAM Device Attributes, /WE Lataency /WE Latency=0 01h
BYTE21 SDRAM Module Attributes Neither Buffered nor Registered 00h
BYTE22 SDRAM Device Attributes, General
+/- 10% voltage tolerence, Burst Read
Single Bit Write, Precharge All, Auto
Precharge, Early RAS Precharge
0Eh
BYTE23 SDRAM Cycle Time @/CAS Latency=2 - 10ns 12ns 00h A0h C0h
BYTE24 Access Time from Clock @/CAS Latency=2 - 6ns 6ns 00h 60h 60h
BYTE25 SDRAM Cycle Time @/CAS Latency=1 - - - 00h 00h 00h
BYTE26 Access Time from Clock @/CAS Latency=1 - - - 00h 00h 00h
BYTE27 Minimum Row Precharge Time (tRP) 20ns 20ns 20ns 14h 14h 14h
BYTE28 Minimum Row Active to Row Active Delay (tRRD) 16ns 20ns 20ns 10h 14h 14h
BYTE29 Minimum /RAS to /CAS Delay (tRCD) 20ns 20ns 20ns 14h 14h 14h
BYTE30 Minimum /RAS Pulse Width (tRAS) 48ns 50ns 50ns 30h 32h 32h
BYTE31 Module Bank Density 128MB 20h
BYTE32 Command and Address Signal Input Setup Time 2ns 2ns 2ns 20h 20h 20h
BYTE33 Command and Address Signal Input Hold Time 1ns 1ns 1ns 10h 10h 10h
BYTE34 Data Signal Input Setup Time 2ns 2ns 2ns 20h 20h 20h
BYTE35 Data Signal Input Hold Time 1ns 1ns 1ns 10h 10h 10h
BYTE36
~61 Superset Information (may be used in future) - 00h
BYTE62 SPD Revision Intel SPD 1.2B 12h 3, 8
BYTE63 Checksum for Byte 0~62 - hhh
BYTE64 Manufacturer JEDEC ID Code Hynix JEDED ID ADh
BYTE65
~71 ....Manufacturer JEDEC ID Code Unused FFh
BYTE72 Manufacturing Location
Hynix (Korea Area)
HSA (United States Area)
HSU (Europe Area)
HSJ (Japan Area)
HSS(Singapore)
ASIA Area
0*h
1*h
2*h
3*h
4*h
5*h
9
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 6
HYM72V16M656BTU6 Series
Continued
Note :
1. The bank address is excluded
2. 1,2, 4, 8, for Interleave Burst Type
3. BCD adopted
4. ASCII adopted
5. Basically Hynix writes Part No. except for ‘HYM’ in Byte 73~90 to use the Limited 18 bytes from byte 73 to byte 90
6. Not fixed but dependent
7. CK0 connected to DIMM, TBD junction temp, CL2(3) support, Intel defined Concurrent Auto Precharge support
8. Refer to Intel SPD Specification 1.2B
9. Refer to Hynix Web site
Byte 82~84 for Low Power
BYTE
NUMBER
FUNCTION
DESCRIPTION
FUNCTION VALUE NO
TE
-8 -P -S -8 -P -S
BYTE73 Manufacturer’s Part Number (Component) 7 (SDRAM) 37h 4, 5
BYTE74 Manufacturer’s Part Number (128Mb based) 2 31h 4, 5
BYTE75 Manufacturer’s Part Number (Voltage Interface) V (3.3V, LVTTL) 56h 4, 5
BYTE76 Manufacturer’s Part Number (Memory Width) 1 31h 4, 5
BYTE77 ....Manufacturer’s Part Number (Memory Width) 6 36h 4, 5
BYTE78 Manufacturer’s Part Number (Module Type) M (SO DIMM) 4Dh 4, 5
BYTE79 Manufacturer’s Part Number (Data Width) 6 36h 4, 5
BYTE80 ....Manufacturer’s Part Number (Data Width) 5 35h 4, 5
BYTE81 Manufacturer’s Part Number (Refresh, SDRAM Bank) 6 (8K Refresh, 4Banks) 36h 4, 5
BYTE82 Manufacturer’s Part Number (Generation) B 42h 4, 5
BYTE83 Manufacturer’s Part Number (Package Type) T 54h 4, 5
BYTE84 Manufacturer’s Part Number (Module Type) U(Micro based) 55h 4, 5
BYTE85 Manufacturer’s Part Number (Component Configuration) 6 (x16 based) 36h 4, 5
BYTE86 Manufacturer’s Part Number (Hyphent) - (Hyphen) 2Dh 4, 5
BYTE87 Manufacturer’s Part Number (Min. Cycle Time) 8 P S 38h 50h 53h 4, 5
BYTE88
~90 Manufacturer’s Part Number Blanks 20h 4, 5
BYTE91 Revision Code (for Component) Process Code - 4, 6
BYTE92 ....Revision Code (for PCB) Process Code - 4, 6
BYTE93 Manufacturing Date Work Week - 3, 6
BYTE94 ....Manufacturing Date Year - 3, 6
BYTE95
~98 Assembly Serial Number Serial Number - 6
BYTE99
~125 Manufacturer Specific Data (may be used in future) None 00h
BYTE126 System Frequency Support 100MHz 64h 7, 8
BYTE127 Intel Specification Details for 100MHz Support Refer to Note7 8Fh 8Dh 8Dh 7, 8
BYTE128
~256 Unused Storage Locations - 00h
BYTE
NUMBER
FUNCTION
DESCRIPTION
FUNCTION VALUE NOTE
-8 -P -S -8 -P -S
BYTE82 Manufacturer’s Part Number(Manufacturing Site) B42h4, 5
BYTE83 Manufacturer’s Part Number (Power) L4Ch4, 5
BYTE84 Manufacturer’s Part Number (Package Type) T54h4, 5
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 7
HYM72V16M656BTU6 Series
ABSOLUTE MAXIMUM RATINGS
Note : Operation at above absolute maximum rating can adversely affect device reliability.
DC OPERATING CONDITION (TA=0 to 70°C)
Note :
1.All voltages are referenced to VSS = 0V
2.VIH(max) is acceptable 5.6V AC pulse width with <=3ns of duration.
3.VIL(min) is acceptable -2.0V AC pulse width with <=3ns of duration.
AC OPERATING TEST CONDITION (TA=0 to 70°C, VDD=3.3±0.3V, VSS=0V)
Note :
1.Output load to measure access times is equivalent to two TTL gates and one capacitor (50pF). For details, refer to AC/DC output
load circuit
Parameter Symbol Rating Unit
Ambient Temperature TA0 ~ 70 °C
Storage Temperature TSTG -55 ~ 125 °C
Voltage on Any Pin relative to VSS VIN, VOUT -1.0 ~ 4.6 V
Voltage on VDD relative to VSS VDD, VDDQ -1.0 ~ 4.6 V
Short Circuit Output Current IOS 50 mA
Power Dissipation PD4W
Soldering Temperature ⋅ Time TSOLDER 260 ⋅ 10 °C ⋅ Sec
Parameter Symbol Min Typ Max Unit Note
Power Supply Voltage VDD, VDDQ 3.0 3.3 3.6 V 1
Input High voltage VIH 2.0 3.0 VDDQ + 0.3 V 1,2
Input Low voltage VIL -0.3 0 0.8 V 1,3
Parameter Symbol Value Unit Note
AC Input High / Low Level Voltage VIH / VIL 2.4/0.4 V
Input Timing Measurement Reference Level Voltage Vtrip 1.4 V
Input Rise / Fall Time tR / tF 1 ns
Output Timing Measurement Reference Level Voltage Voutref 1.4 V
Output Load Capacitance for Access Time Measurement CL50 pF 1
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 8
HYM72V16M656BTU6 Series
CAPACITANCE (TA=25°C, f=1MHz)
OUTPUT LOAD CIRCUIT
Parameter Pin Symbol
-8/P/S
Unit
Min Max
Input Capacitance
CK0 CI1 20 40 pF
CKE0 CI2 15 35 pF
/S0 CI3 15 35 pF
A0~12, BA0, BA1 CI4 15 35 pF
/RAS, /CAS, /WE CI5 15 30 pF
DQM0~DQM7 CI6515pF
Data Input / Output Capacitance DQ0 ~ DQ63 CI/O 515pF
Vtt=1.4V
RT=250 Ω
50pF
Output
50pF
Output
DC Output Load Circuit AC Output Load Circuit
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 9
HYM72V16M656BTU6 Series
DC CHARACTERISTICS I (TA=0 to 70°C, VDD=3.3±0.3V)
Note :
1.VIN = 0 to 3.6V, All other pins are not tested under VIN =0V
2.DOUT is disabled, VOUT=0 to 3.6
DC CHARACTERISTICS II
Note :
1. IDD1 and IDD4 depend on output loading and cycle rates. Specified values are measured with the output open
2. Min. of tRRC (Refresh RAS cycle time) is shown at AC CHARACTERISTICS II
3. HYM72V16M656BTU6-8/P/S
4. HYM72V16M656BLTU6-8/P/S
Parameter Symbol Min. Max Unit Note
Input Leakage Current ILI -4 4 uA 1
Output Leakage Current ILO -1 1 uA 2
Output High Voltage VOH 2.4 - V IOH = -2mA
Output Low Voltage VOL -0.4VI
OL = +2mA
Parameter Symbol Test Condition
Speed
Unit Note
-8 -p -S
Operating Current IDD1 Burst length=1, One bank active
tRC ≥ tRC(min), IOL=0mA 480 480 480 mA 1
Precharge Standby Current
in Power Down Mode
IDD2P CKE ≤ VIL(max), tCK = 15ns 88
mA
IDD2PS CKE ≤ VIL(max), tCK = ∞44
Precharge Standby Current
in Non Power Down Mode
IDD2N
CKE ≥ VIH(min), CS ≥ VIH(min), tCK = 15ns
Input signals are changed one time during
30ns. All other pins ≥ VDD-0.2V or ≤ 0.2V
80 80
mA
IDD2NS CKE ≥ VIH(min), tCK = ∞
Input signals are stable. 60 60
Active Standby Current
in Power Down Mode
IDD3P CKE ≤ VIL(max), tCK = 15ns 20 20
mA
IDD3PS CKE ≤ VIL(max), tCK = ∞20 20
Active Standby Current
in Non Power Down Mode
IDD3N
CKE ≥ VIH(min), CS ≥ VIH(min), tCK = 15ns
Input signals are changed one time during
30ns. All other pins ≥ VDD-0.2V or ≤ 0.2V
120 120
mA
IDD3NS CKE ≥ VIH(min), tCK = ∞
Input signals are stable. 80 80
Burst Mode Operating
Current IDD4 tCK ≥ tCK(min), IOL=0mA
All banks active
CL=3 520 520 440
mA 1
CL=2 560 560 480
Auto Refresh Current IDD5 tRRC ≥ tRRC(min), All banks active 960 960 mA 2
Self Refresh Current IDD6 CKE ≤ 0.2V
16 16 mA 3
88mA4
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 10
HYM72V16M656BTU6 Series
AC CHARACTERISTICS I (AC operating conditions unless otherwise noted)
Note :
1.Assume tR / tF (input rise and fall time ) is 1ns
If tR & tF > 1ns, then [(tR+tF)/2-1]ns should be added to the parameter
2.Access times to be measured with input signals of 1v/ns edge rate, from 0.8v to 2.0v
If tR > 1ns, then (tR/2-0.5)ns should be added to the parameter
Parameter Symbol
-8 -8 -S
Unit Note
Min Max Min Max Min Max
System Clock
Cycle Time
CAS Latency = 3 tCK3 8
1000
8
1000
10
1000
ns
CAS Latency = 2 tCK2 10 10 12 ns
Clock High Pulse Width tCHW 3 - 3 - 3 - ns 1
Clock Low Pulse Width tCLW 3 - 3 - 3 - ns 1
Access Time
From Clock
CAS Latency = 3 tAC3 - 6 - 6 - 6 ns
2
CAS Latency = 2 tAC2 - 6 - 6 - 6 ns
Data-Out Hold Time tOH 3 - 3 - 3 - ns
Data-Input Setup Time tDS 2 - 2 - 2 - ns 1
Data-Input Hold Time tDH 1 - 1 - 1 - ns 1
Address Setup Time tAS 2 - 2 - 2 - ns 1
Address Hold Time tAH 1 - 1 - 1 - ns 1
CKE Setup Time tCKS 2 - 2 - 2 - ns 1
CKE Hold Time tCKH 1 - 1 - 1 - ns 1
Command Setup Time tCS 2 - 2 - 2 - ns 1
Command Hold Time tCH 1 - 1 - 1 - ns 1
CLK to Data Output in Low-Z Time tOLZ 1 - 1 - 1 - ns
CLK to Data
Output in High-Z
Time
CAS Latency = 3tOHZ3363636ns
CAS Latency = 2tOHZ2363636ns
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 11
HYM72V16M656BTU6 Series
AC CHARACTERISTICS II
Note :
1. A new command can be given tRRC after self refresh exit
Parameter Symbol
-8 -8 -S
Unit Note
Min Max Min Max Min Max
RAS Cycle Time
Operation tRC 68 - 68 - 70 - ns
Auto Refresh tRRC 68 - 68 - 70 - ns
RAS to CAS Delay tRCD 20 - 20 - 20 - ns
RAS Active Time tRAS 48 100K 48 100K 50 100K ns
RAS Precharge Time tRP 20 - 20 - 20 - ns
RAS to RAS Bank Active Delay tRRD 16 - 16 - 20 - ns
CAS to CAS Delay tCCD 1 - 1 - 1 - CLK
Write Command to Data-In Delay tWTL 0 - 0 - 0 - CLK
Data-In to Precharge Command tDPL 2 - 2 - 2 - CLK
Data-In to Active Command tDAL 5 - 5 - 4 - CLK
DQM to Data-Out Hi-Z tDQZ 2 - 2 - 2 - CLK
DQM to Data-In Mask tDQM0-0-0-CLK
MRS to New Command tMRD 2 - 2 - 2 - CLK
Precharge to Data
Output Hi-Z
CAS Latency = 3 tPROZ3 3 - 3 - 3 - CLK
CAS Latency = 2 tPROZ2 2 - 2 - 2 - CLK
Power Down Exit Time tPDE 1 - 1 - 1 - CLK
Self Refresh Exit Time tSRE 1 - 1 - 1 - CLK 1
Refresh Time tREF - 64 - 64 - 64 ms
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 12
HYM72V16M656BTU6 Series
DEVICE OPERATING OPTION TABLE
HYM72V16M656B(L)TU6-8
HYM72V16M656B(L)TU6-P
HYM72V16M656B(L)TU6-S
CAS Latency tRCD tRAS tRC tRP tAC tOH
125MHz(8ns) 3CLKs 3CLKs 6CLKs 9CLKs 3CLKs 6ns 3ns
100MHz(10ns) 3CLKs 2CLKs 5CLKs 7CLKs 2CLKs 6ns 3ns
83MHz(12ns) 2CLKs 2CLKs 4CLKs 6CLKs 2CLKs 6ns 3ns
CAS Latency tRCD tRAS tRC tRP tAC tOH
100MHz(10ns) 2CLKs 2CLKs 5CLKs 7CLKs 2CLKs 6ns 3ns
83MHz(12ns) 2CLKs 2CLKs 5CLKs 7CLKs 2CLKs 6ns 3ns
66MHz(15ns) 2CLKs 2CLKs 4CLKs 6CLKs 2CLKs 6ns 3ns
CAS Latency tRCD tRAS tRC tRP tAC tOH
100MHz(10ns) 3CLKs 2CLKs 5CLKs 7CLKs 2CLKs 6ns 3ns
83MHz(12ns) 2CLKs 2CLKs 5CLKs 7CLKs 2CLKs 6ns 3ns
66MHz(15ns) 2CLKs 2CLKs 4CLKs 6CLKs 2CLKs 6ns 3ns
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 13
HYM72V16M656BTU6 Series
COMMAND TRUTH TABLE
Note :
1. Exiting Self Refresh occurs by asynchronously bringing CKE from low to high
2. X = Don′t care, H = Logic High, L = Logic Low. BA =Bank Address, RA = Row Address, CA = Column Address,
Opcode = Operand Code, NOP = No Operation
Command CKEn-1 CKEn CS RAS CAS WE DQM ADDR A10/
AP BA Note
Mode Register Set H X L L L L X OP code
No Operation H X
HXXX
XX
LHHH
Bank Active H X L L H H X RA V
Read
HXLHLHXCA
L
V
Read with Autoprecharge H
Write
HXLHLLXCA
L
V
Write with Autoprecharge H
Precharge All Banks
HXLLHLXX
HX
Precharge selected Bank LV
Burst Stop H X L H H L X X
DQM H X V X
Auto Refresh H H L L L H X X
Self Refresh1
Entry H L L L L H X
X
Exit L H
HXXX
X
LHHH
Precharge
power down
Entry H L
HXXX
X
X
LHHH
Exit L H
HXXX
X
LHHH
Clock
Suspend
Entry H L
HXXX
X
XLVVV
Exit L H X X
PC100 SDRAM SO DIMM
Rev. 0.1/Apr. 01 14
HYM72V16M656BTU6 Series
PACKAGE DEMENSION
±0.08
