HN27C101AG Series
HN27C301AG Series
131072-word × 8-bit CMOS UV Erasable and Programmable
ROM
ADE-203-
Rev. 0.0
Dec. 1, 1995
Description
The Hitachi HN27C101AG/HN27C301AG is a 1-Mbit ultraviolet erasable and electrically programmable
ROM. This device is packaged in a 32-pin dual-in-line package with transparent lid. The transparent lid
allows the memory content to be erased with ultraviolet light, whereby a new pattern can then be written
into the device.
Features
Single power supply:
+5 V ± 5% (HN27C101AG-10/HN27C301AG-10)
+5 V ± 10% (HN27C101AG/HN27C301AG-12/15/17/20/ 25)
Fast high-reliability programming mode and fast high-reliability page programming mode
Programming voltage: +12.5 V DC
Fast high-reliability page programming: 14 sec typ
High speed inputs and outputs TTL compatible during both read and program modes
Low power dissipation: 50 mW/MHz typ (active)
5 µW typ (standby)
Pin arrangement: 32-pin JEDEC standard (HN27C101AG)
: replaceable 32 pin MASK ROM (HN27C301AG)
Device identifier mode: manufacturer code and device code
Fully compatible with HN27C101G/ HN27C301G series
HN27C101AG/HN27C301AG Series
2
Ordering Information
Type No. Access Time Package
HN27C101AG-10
HN27C101AG-12
HN27C101AG-15
HN27C101AG-17
HN27C101AG-20
HN27C101AG-25
100 ns
120 ns
150 ns
170 ns
200 ns
250 ns
600-mil 32-pin cerdip (DG-32)
HN27C301AG-10
HN27C301AG-12
HN27C301AG-15
HN27C301AG-17
HN27C301AG-20
HN27C301AG-25
100 ns
120 ns
150 ns
170 ns
200 ns
250 ns
HN27C101AG/HN27C301AG Series
3
Pin Arrangement
VPP
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
VSS
VCC
PGM
NC
A14
A13
A8
A9
A11
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VPP
OE
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
VSS
VCC
PGM
NC
A14
A13
A8
A9
A11
A16
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
(Top view) (Top view)
HN27C101AG Series HN27C301AG Series
Pin Description
Pin Name Function
A0 A16 Address
I/O0 I/O7 Input/output
CE Chip enable
OE Output enable
VCC Power supply
VPP Programming power supply
VSS Ground
PGM Programming enable
NC No connection
HN27C101AG/HN27C301AG Series
4
Block Diagram
X-Decoder
Input
Data
Control
Y-Gating
Y-Decoder
A0 – A4
H: High Threshold Inverter
H
1024 × 1024
Memory Matrix
I/O0
I/O7
CE
OE
VCC
VPP
VSS
A10, A11
PGM
A5
A9
A12
A16
HN27C101AG/HN27C301AG Series
5
Mode Selection
Mode CE OE PGM A9 VPP VCC I/O
HN27C101AG (22) (24) (31) (26) (1) (32) (13 15, 17 21)
HN27C301AG (22) (2) (31) (26) (1) (32) (13 15, 17 21)
Read VIL VIL VIH XV
CC VCC Dout
Output disable VIL VIH VIH XV
CC VCC High-Z
Standby VIH XXXV
CC VCC High-Z
Program VIL VIH VIL XV
PP VCC Din
Program verify VIL VIL VIH XV
PP VCC Dout
Page data latch VIH VIL VIH XV
PP VCC Din
Page program VIH VIH VIL XV
PP VCC High-Z
Program inhibit VIL VIL VIL XV
PP VCC High-Z
VIL VIH VIH
VIH VIL VIL
VIH VIH VIH
Identifier VIL VIL VIH VHVCC VCC Code
Notes: 1. X: Dont care
2. VH: 12.0 V ± 0.5 V
Absolute Maximum Ratings
Parameter Symbol Value Unit
All input and output voltages*1Vin, Vout 0.6*2 to +7.0 V
A9 input voltage*1VID 0.6*2 to +13.5 V
VPP voltage*1VPP 0.6 to +13.5 V
VCC voltage*1VCC 0.6 to +7.0 V
Operating temperature range Topr 0 to +70 °C
Storage temperature range Tstg 65 to +125 °C
Storage temperature range under bias Tbias 10 to +80 °C
Notes: 1. Relative to VSS
2. Vin, Vout and VID min = 1.0 V for pulse width 50 ns
Capacitance (Ta = 25°C, f = 1 MHz)
Parameter Symbol Min Typ Max Unit Test Conditions
Input capacitance Cin ——10 pF Vin = 0 V
Output capacitance Cout ——15 pF Vout = 0 V
HN27C101AG/HN27C301AG Series
6
Read Operation
DC Characteristics (VCC = 5 V ± 5%, VPP = VCC, Ta = 0 to +70°C) (HN27C101AG/HN27C301AG-10)
(VCC = 5 V ± 10%, VPP = VCC, Ta = 0 to +70°C)
(HN27C101AG/HN27C301AG-12/15/17/20/25)
Parameter Symbol Min Typ Max Unit Test Conditions
Input leakage current ILI ——2µA Vin = 0 V to VCC
Output leakage current ILO ——2µA Vout = 0 V to VCC
VPP current IPP1 120µAV
PP = 5.5 V
Standby VCC current ISB1 ——1mACE = VIH
ISB2 120µACE = VCC ± 0.3 V
Operating VCC current ICC1 ——30 mA CE = VIL, Iout = 0 mA
ICC2 ——30 mA f = 5 MHz, Iout = 0 mA
——50 mA f = 10 MHz, Iout = 0 mA
Input low voltage VIL 0.3*10.8 V
Input high voltage VIH 2.2 VCC +
1.0*2V
Output low voltage VOL ——0.45 V IOL = 2.1 mA
Output high voltage VOH 2.4 ——VI
OH = 1 mA
VCC 0.7 ——VI
OH = 0.1 mA
Notes: 1. VIL min = 1.0 V for pulse width 50 ns
2. VIH max = VCC +1.5 V for pulse width 20 ns
If VIH is over the specified maximum value, read operation cannot be guaranteed.
HN27C101AG/HN27C301AG Series
7
AC Characteristics (VCC = 5 V ± 5%, VPP = VCC, Ta = 0 to +70°C) (HN27C101AG/HN27C301AG-10)
(VCC = 5 V ± 10%, VPP = VCC, Ta = 0 to +70°C)
(HN27C101AG/HN27C301AG-12/15/17/20/25)
Test Conditions
Input pulse levels: 0.45 V to 2.4 V
Input rise and fall time: 20 ns
Output load: 1 TTL gate +100 pF
Reference levels for measuring timing: Inputs; 0.8 V and 2.0 V
Outputs; 0.8 V and 2.0 V
HN27C101AG/HN27C301AG
-10 -12 -15 -17 -20 -25 Test
Parameter Symbol Min Max Min Max Min Max Min Max Min Max Min Max Unit Conditions
Address to
output delay tACC 100 120 150 170 200 250 ns CE = OE =
VIL
CE to output
delay tCE 100 120 150 170 200 250 ns OE = VIL
OE to output
delay tOE 60 60 70 70 70 100 ns CE = VIL
OE high to
output float tDF 0 50 0 50 0 50 0 50 0 50 0 60 ns CE = VIL
Address to
output hold tOH 000000ns CE = OE =
VIL
Note: tDF is defined as the time at which the output achieves the open circuit condition and data is no
longer driven.
HN27C101AG/HN27C301AG Series
8
Read Timing Waveform
tACC
Address 
CE
Data Out
OE
Standby Mode Active Mode Standby Mode
Data Out Valid
tOE tDF
tOH
tCE
HN27C101AG/HN27C301AG Series
9
Fast High-Reliability Programming
This device can be applied the programming algorithm shown in following flowchart. This algorithm
allows to obtain faster programming time without any voltage stress to the device nor deterioration in
reliability of programmed data.
START
SET PROG./VERIFY MODE
VPP = 12.5 ± 0.3 V, VCC = 6.0 ± 0.25 V
Address = 0
n = 0
Program tOPW = 0.2 ms ± 5%
VERIFY
NO LAST
Address?
READ
All Address
END FAIL
n = 25
SET READ MODE
VCC = 5.0 ± 0.25 V, VPP = VCC
Address + 1 Address
YES
NOGO
YES
n + 1 n
NO
GO
GO
NOGO
Program tOPW = 0.2n ms
Fast High-Reliability Programming Flowchart
HN27C101AG/HN27C301AG Series
10
DC Characteristics (Ta = 25 °C ± 5°C, VCC = 6 V ± 0.25 V, VPP = 12.5 V ± 0.3 V)
Parameter Symbol Min Typ Max Unit Test Conditions
Input leakage current ILI ——2µA Vin = 0 V to VCC
VPP supply current IPP ——40 mA CE = PGM = VIL
Operating VCC current ICC ——30 mA
Input low level VIL 0.1*50.8 V
Input high level VIH 2.2 VCC + 0.5*6V
Output low voltage during verify VOL ——0.45 V IOL = 2.1 mA
Output high voltage during verify VOH 2.4 —— VI
OH = 400 µA
Notes: 1. VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.
2. VPP must not exceed 13.5 V including overshoot.
3. An influence may be had upon device reliability if the device is installed or removed while VPP =
12.5 V.
4. Do not alter VPP either VIL to 12.5 V or 12.5 V to VIL when CE = Low.
5. VIL min = 0.6 V for pulse width 20 ns
6. If VIH is over the specified maximum value, programming operation cannot be guaranteed.
HN27C101AG/HN27C301AG Series
11
AC Characteristics (Ta = 25°C ± 5°C, VCC = 6 V ± 0.25 V, VPP = 12.5 V ± 0.3 V)
Test Conditions
Input pulse levels: 0.45 V to 2.4 V
Input rise and fall time: 20 ns
Reference levels for measuring timing: Inputs; 0.8 V and 2.0 V
Outputs; 0.8 V and 2.0 V
Parameter Symbol Min Typ Max Unit Test Conditions
Address setup time tAS 2——µs
OE setup time tOES 2——µs
Data setup time tDS 2——µs
Address hold time tAH 0——µs
Data hold time tDH 2——µs
OE to output float delay tDF*10130 ns
VPP setup time tVPS 2——µs
V
CC setup time tVCS 2——µs
PGM initial programming pulse
width tPW 0.19 0.2 0.21 ms
PGM overprogramming pulse width tOPW*20.19 5.25 ms
CE setup time tCES 2——µs
Data valid from OE tOE 0150 ns
Notes: 1. tDF is defined as the time at which the output achieves the open circuit condition and data is no
longer driven.
2. Refer to the programming flowchart for tOPW.
HN27C101AG/HN27C301AG Series
12
Fast High-Reliability Programming Timing Waveform
Address
CE
OE
Data
VPP
VCC
tVCS
VCC
VCC+1
VCC
VPP
PGM
tVPS
tDS tDH tDF
tAH
tAS
Program Program Verify
tCES
tPW tOES tOE
Data In Stable Data Out Valid
HN27C101AG/HN27C301AG Series
13
Fast High-Reliability Page Programming
This device can be applied the high performance page programming algorithm shown in following
flowchart. This algorithm allows to obtain faster programming time without any voltage stress to the
device nor deterioration in reliability of programmed data.
START
SET PAGE PROG. LATCH MODE
VPP = 12.5 ± 0.3 V, VCC = 6.0 ± 0.25 V
Address = 0
n = 0
B
READ
All Address
END FAIL
n = 25 YES
NOGO
Latch
NO
GO
Program tPW = 0.2 ms ± 5%
VERIFY
LAST
Address?
SET READ MODE
VCC = 5.0 ± 0.25 V, VPP = VCC
YES
GO
NOGO
Program tOPW = 0.2n ms
Address + 1
Address
Address + 1
Address
Latch
Address + 1
Address
Latch
Address + 1
Address
Latch
n + 1 n
NO
B
A
A
SET PAGE PROG./
VERIFY MODE
VPP = 12.5 ± 0.3 V,
VCC = 6.0 ± 0.25 V
Fast High-Reliability Page Programming Flowchart
HN27C101AG/HN27C301AG Series
14
DC Characteristics (Ta = 25 °C ± 5°C, VCC = 6 V ± 0.25 V, VPP = 12.5 V ± 0.3 V)
Parameter Symbol Min Typ Max Unit Test Conditions
Input leakage current ILI ——2µA Vin = 0 V to VCC
VPP supply current IPP ——50 mA CE = OE= VIH, PGM = VIL
Operating VCC current ICC ——30 mA
Input low level VIL 0.1*50.8 V
Input high level VIH 2.2 VCC + 0.5*6V
Output low voltage during verify VOL ——0.45 V IOL = 2.1 mA
Output high voltage during verify VOH 2.4 —— VI
OH = 400 µA
Notes: 1. VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.
2. VPP must not exceed 13.5 V including overshoot.
3. An influence may be had upon device reliability if the device is installed or removed while VPP =
12.5 V.
4. Do not alter VPP either VIL to 12.5 V or 12.5 V to VIL when CE = Low.
5. VIL min = 0.6 V for pulse width 20 ns
6. If VIH is over the specified maximum value, programming operation cannot be guaranteed.
HN27C101AG/HN27C301AG Series
15
AC Characteristics (Ta = 25°C ± 5°C, VCC = 6 V ± 0.25 V, VPP = 12.5 V ± 0.3 V)
Test conditions
Input pulse levels: 0.45 V to 2.4 V
Input rise and fall time: 20 ns
Reference levels for measuring timing: Inputs; 0.8 V and 2.0 V
Outputs; 0.8 V and 2.0 V
Parameter Symbol Min Typ Max Unit
Address setup time tAS 2——µs
OE setup time tOES 2——µs
Data setup time tDS 2——µs
Address hold time tAH 0——µs
t
AHL 2——µs
Data hold time tDH 2——µs
OE to output float delay tDF*10130 ns
VPP setup time tVPS 2——µs
V
CC setup time tVCS 2——µs
PGM initial programming pulse width tPW 0.19 0.2 0.21 ms
PGM overprogramming pulse width tOPW*20.19 5.25 ms
CE setup time tCES 2——µs
Data valid from OE tOE 0150 ns
OE pulse width during data latch tLW 1——µs
PGM setup time tPGMS 2——µs
CE hold time tCEH 2——µs
OE hold time tOEH 2——µs
Notes: 1. tDF is defined as the time at which the output achieves the open circuit condition and data is no
longer driven.
2. Refer to the programming flowchart for tOPW.
HN27C101AG/HN27C301AG Series
16
Fast High-Reliability Page Programming Timing Waveform
A0, A1
CE
OE
Data
VPP
VCC VCC
VCC+1
VCC
VPP
PGM
tAS
Page data latch Page program program verify
A2 to A16 tAHL
tDS tDH
Data in stable
tPGMS tOE tDF
Data out valid
tVPS
tVCS tCES
tCEH
tPW
tOES
tOEH
tLW
tAH
Erase
Erasure of this device is performed by exposure to ultraviolet light of 2537 Å and all the output data are
changed to „1“ after this erasure procedure. The minimum integrated dose (i.e. UV intensity × exposure
time) for erasure is 15 W. sec/cm2.
HN27C101AG/HN27C301AG Series
17
Mode Description
Device Identifier Mode
The device identifier mode allows the reading out of binary codes that identify manufacturer and type of
device, from outputs of EPROM. By this mode, the device will be automatically matched its own
corresponding programming algorithm, using programming equipment.
HN27C101AG Identifier Code
Identifier A0
(12) A9
(26) I/O7
(21) I/O6
(20) I/O5
(19) I/O4
(18) I/O3
(17) I/O2
(15) I/O1
(14) I/O0
(13) Hex Data
Manufacturer code VIL VH0000011107
Device code VIH VH0011100038
HN27C301AG Identifier Code
Identifier A0
(12) A9
(26) I/O7
(21) I/O6
(20) I/O5
(19) I/O4
(18) I/O3
(17) I/O2
(15) I/O1
(14) I/O0
(13) Hex Data
Manufacturer code VIL VH0000011107
Device code VIH VH10111001B9
Notes: 1. VH = 12.0 V ± 0.5 V
2. A1A8, A10A16, CE, OE = VIL, PGM = VIH
HN27C101AG/HN27C301AG Series
18
Package Dimensions
HN27C101AG/HN27C301AG Series (DG-32) Unit: mm
0.38 Min
2.54 Min
0.48 ± 0.10
2.54 ± 0.25
1.32
41.91
14.66
0.25
0 – 10°
+ 0.11
– 0.05
15.24
32 17
116
5.89 Max
φ8.89
43.18 Max
15.51 Max
2.54 Max