OKI Semiconductor
MR27V3252J
2M–Word
×
16–Bit or 4M–Word
×
8–Bit
Page Mode
FEDR27V3252J-01-02
Issue Date: Jul. 9, 2004
OTP
PIN CONFIGURATION (TOP VIEW)
GENERAL DESCRIPTION
The MR27V3252J is a 32 Mbit electrically One Time
Programmable Read-Only Memory with page mode. Its
configuration can be electrically switched between
2,097,152-word
×
16-bit and 4,194,304-word
×
8-bit by the
state of the BYTE# pin. The MR27V3252J supports high
speed asynchronous read operation using a single 3.3V power
supply.
FEATURES
· 2,097,152-word
×
16-bit / 4,194,304-word
×
8-bit electrically
switchable configuration
· Page size of 8-word x 16-Bit or 16-word x 8-Bit
· 3.0 V to 3.6 V power supply
· Random Access time
70 ns MAX
· Page Access time
25 ns MAX
· Operating current
50 mA MAX
· Standby current
10 µA MAX
· Input/Output TTL compatible
· Three-state output
A15
A14
A13
A12
A11
A10
A9
A8
A19
A20
NC
NC
NC
NC
NC
A18
A17
A7
A6
A5
A4
A3
A2
A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
A16
BYTE#/V
PP
V
SS
D15/A–1
D7
D14
D6
D13
D5
D12
D4
V
CC
D11
D3
D10
D2
D9
D1
D8
D0
OE#
V
SS
CE#
25
A0
48TSOP(Type-I)
PACKAGES
·MR27V3252JTN
48-pin plastic TSOP (TSOP I 48-P-1220-0.50-1K)
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FEDR27V3252J-01-02
OKI Semiconductor
MR27V3252J / OTP
BLOCK DIAGRAM
A–1
× 8/× 16 Switch
CE#
CE
OE#
OE
BYTE#/V
PP
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
Row Decoder
Memory Cell Matrix
2M × 16-Bit or 4M × 8-Bit
Address Buffer
Column Decoder
Multiplexer
Output Buffer
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D12
D14
D15
D11
D13
In 8-bit output mode, these pins
are placed in a high-Z state and
pin D15 functions as the A-1
address pin.
PIN DESCRIPTIONS
Pin name
D15 / A–1
A0 to A20
D0 to D14
CE#
OE#
BYTE#/V
PP
V
CC
V
SS
NC
Address inputs
Data outputs
Chip enable input
Output enable input
Mode switch/Program power supply voltage
Power supply voltage
Ground
No connect
Functions
Data output / Address input
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FEDR27V3252J-01-02
OKI Semiconductor
MR27V3252J / OTP
FUNCTION TABLE
Mode
Read (16-Bit)
Read (8-Bit)
Output disable
Standby
Program
Program inhibit
Program verify
∗:
Don’t Care (H or L)
CE#
L
L
L
H
L
H
H
OE#
L
L
H
∗
H
H
L
V
PP
V
CC
BYTE#
H
L
H
L
H
L
3.3 V
D
OUT
V
CC
D0 to D7
D8 to D14
D
OUT
Hi–Z
Hi–Z
Hi–Z
D
IN
Hi–Z
D
OUT
L/H
∗
∗
D15/A–1
ABSOLUTE MAXIMUM RATINGS
Parameter
Operating temperature under bias
Storage temperature
Input voltage
Output voltage
Power supply voltage
Program power supply voltage
Power dissipation per package
Output short circuit current
Symbol
Ta
Tstg
V
I
V
O
V
CC
V
PP
P
D
I
OS
Ta = 25°C
—
relative to V
SS
Condition
—
Value
0 to 70
–55 to 125
–0.5 to V
CC
+0.5
–0.5 to V
CC
+0.5
–0.5 to 5
–0.5 to 11.5
1.0
10
Unit
°C
°C
V
V
V
V
W
mA
RECOMMENDED OPERATING CONDITIONS
(Ta = 0 to 70°C)
Parameter
V
CC
power supply voltage
V
PP
power supply voltage
Input “H” level
Symbol
V
CC
V
PP
V
IH
V
CC
= 3.0 to 3.6 V
Condition
Min.
3.0
–0.5
2.2
—
—
Typ.
—
Max.
3.6
V
CC
+0.5
V
CC
+0.5∗
0.6
Unit
V
V
V
V
Input “L” level
V
IL
–0.5∗∗
Voltage is relative to V
SS
.
∗
: Vcc+1.5V(Max.) when pulse width of overshoot is less than 10ns.
∗∗
: -1.5V(Min.) when pulse width of undershoot is less than 10ns.
PIN CAPACITANCE
(V
CC
= 3.3 V, Ta = 25°C, f = 1 MHz)
Parameter
Input
BYTE#/V
PP
Output
Symbol
C
IN1
C
IN2
C
OUT
Condition
V
I
= 0 V
V
O
= 0 V
Min.
—
—
—
Typ.
—
—
—
Max.
8
200
10
pF
Unit
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FEDR27V3252J-01-02
OKI Semiconductor
MR27V3252J / OTP
ELECTRICAL CHARACTERISTICS
DC Characteristics
(V
CC
= 3.0 V to 3.6 V, Ta = 0 to 70°C)
Parameter
Input leakage current
Output leakage current
V
CC
power supply current
(Standby)
V
CC
power supply current
(Read)
V
PP
power supply current
Input “H” level
Input “L” level
Output “H” level
Output “L” level
Symbol
I
LI
I
LO
I
CCSC
I
CCST
I
CCA1
I
PP
V
IH
V
IL
V
OH
V
OL
Condition
V
I
= 0 to V
CC
V
O
= 0 to V
CC
CE# = V
CC
CE# = V
IH
OE# = V
IH,
f = 10MHz
V
PP
= V
CC
—
—
I
OH
= –1 mA
I
OL
= 2 mA
Min.
—
—
—
—
—
—
2.2
–0.5∗∗
2.4
—
Typ.
—
—
—
—
—
—
—
—
—
—
Max.
5
5
10
1
50
10
V
CC
+0.5∗
0.6
—
0.4
Unit
µA
µA
µA
mA
mA
µA
V
V
V
V
Voltage is relative to V
SS
.
∗
: Vcc+1.5V(Max.) when pulse width of overshoot is less than 10ns.
∗∗
: -1.5V(Min.) when pulse width of undershoot is less than 10ns.
AC Characteristics
(V
CC
= 3.0 V to 3.6 V, Ta = 0 to 70°C)
Parameter
Address cycle time
Address access time
Page cycle time
Page access time
CE# access time
OE# access time
Output disable time
Output hold time
Symbol
t
C
t
ACC
t
PC
t
PAC
t
CE
t
OE
t
CHZ
t
OHZ
t
OH
Condition
—
CE# = OE# = V
IL
—
—
OE# = V
IL
CE# = V
IL
OE# = V
IL
CE# = V
IL
CE# = OE# = V
IL
Min.
70
—
25
—
—
—
0
0
0
Max.
—
70
—
25
70
25
20
20
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
Measurement conditions
Input signal level --------------------------------------0 V/3.0 V
Input timing reference level-------------------------1/2Vcc
Output load ---------------------------------------------50 pF
Output timing reference level ----------------------1/2Vcc
Output load
Output
50 pF
(Including scope and jig)
4/12
FEDR27V3252J-01-02
OKI Semiconductor
MR27V3252J / OTP
TIMING CHART (READ CYCLE)
Random Access Mode Read Cycle
t
C
Address
t
OH
t
CE
CE#
t
CHZ
t
OE
OE#
t
ACC
Dout
Hi-Z
Valid Data
Valid Data
Hi-Z
t
OHZ
t
OH
t
ACC
t
C
Page Access Mode Read Cycle
t
C
A3 to A20
t
PC
A-1 to A2 (Byte mode)
A0 to A2 (Word mode)
t
CE
t
OH
t
PC
CE#
t
OE
OE#
t
ACC
Dout
Hi-Z
Hi-Z
t
PAC
t
PAC
t
OHZ
t
CHZ
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