OKI Semiconductor
MR26V51253L
32M–Word
×
16–Bit or 64M–Word
×
8–Bit Page Mode
FEDR26V51253L-02-02
Issue Date: APR. 8, 2005
P2ROM
PIN CONFIGURATION (TOP VIEW)
FEATURES
·
·
·
·
·
·
·
·
·
33,554,432-word
×
16-bit / 67,108,864-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 100 ns MAX
Page Access time
35 ns MAX
Operating current
80 mA MAX
Standby current
5 mA MAX
Input/Output TTL compatible
Three-state output
A11
A10
A9
A8
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
70 CE#
69 A12
68 A13
67 A14
66 A15
65 Vcc
64 A16
63 A17
62 A18
61 A19
60 A20
59 A21
58 NC
57 NC
56 NC
55 NC
54 NC
A3
A2
10
A1
11
A23
12
PACKAGES
·
MR26V51253L-xxxMB
70-pin plastic SSOP (P-SSOP70-500-0.80-K-MC)
NC
13
NC
14
NC
15
NC
16
NC
17
GND
18
NC
19
NC
20
NC
21
NC
22
NC
23
70SSOP
53 GND
52 NC
51 NC
50 NC
49 NC
48 NC
47 A22
46 A24
45 OE#
44 D15/A-1
43 D7
42 D14
41 D6
40 D13
39 D5
38 D12
37 D4
36 Vcc
P2ROM ADVANCED TECHNOLOGY
P2ROM stands for Production Programmed ROM. This
exclusive Oki technology utilizes factory test equipment for
programming the customers code into the P2ROM prior to final
production testing. Advancements in this technology allows
production costs to be equivalent to MASKROM and has many
advantages and added benefits over the other non-volatile
technologies, which include the following;
·
Short lead time,
since the P2ROM is programmed at the final
stage of the production process, a large P2ROM inventory
"bank system" of un-programmed packaged products are
maintained to provide an aggressive lead-time and minimize
liability as a custom product.
·
No mask charge,
since P2ROMs do not utilize a custom
mask for storing customer code, no mask charges apply.
·
No additional programming charge,
unlike Flash and OTP
that require additional programming and handling costs, the
P2ROM already has the code loaded at the factory with
minimal effect on the production throughput. The cost is
included in the unit price.
·
Custom Marking is
available at no additional charge.
BYTE#
24
A0
25
D0
26
D8
27
D1
28
D9
29
Vcc
30
D2
31
D10
32
D3
33
D11
34
GND
35
1/8
FEDR26V51253L-02-02
OKI Semiconductor
MR26V51253L / P2ROM
BLOCK DIAGRAM
A–1
× 8 / × 16 Switch
CE#
CE
OE#
OE
BYTE#
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
Row Decoder
Memory Cell Matrix
32M × 16-Bit or 64M × 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 A24
D0 to D14
CE#
OE#
BYTE#
V
CC
V
SS
NC
Functions
Data output / Address input
Address inputs
Data outputs
Chip enable input
Output enable input
Word / Byte select input
Power supply voltage
Ground
No connect
2/8
FEDR26V51253L-02-02
OKI Semiconductor
MR26V51253L / P2ROM
FUNCTION TABLE
Mode
Read (16-Bit)
Read (8-Bit)
Output disable
Standby
CE#
L
L
L
H
OE#
L
L
H
∗
BYTE#
H
L
H
L
H
L
V
CC
3.0 V
to
3.6 V
D0 to D7
D
OUT
D8 to D14
D
OUT
Hi–Z
Hi–Z
Hi–Z
D15/A–1
L/H
∗
∗
∗:
Don’t Care (H or L)
ABSOLUTE MAXIMUM RATINGS
Parameter
Operating temperature under bias
Storage temperature
Input voltage
Output voltage
Power supply voltage
Power dissipation per package
Output short circuit current
Symbol
Ta
Tstg
V
I
V
O
V
CC
P
D
I
OS
Condition
—
Relative to V
SS
Ta = 25°C
—
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
1.0
10
Unit
°C
°C
V
V
V
W
mA
RECOMMENDED OPERATING CONDITIONS
(Ta = 0 to 70°C)
Max.
Unit
3.6
V
V
CC
+0.5∗
V
0.6
V
Parameter
V
CC
power supply voltage
Input “H” level
Input “L” level
Symbol
V
CC
V
IH
V
IL
Condition
V
CC
= 3.0 to 3.6 V
Min.
3.0
2.2
–0.5∗∗
Typ.
—
—
—
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)
Typ.
Max.
Unit
—
16
pF
—
400
—
20
Parameter
Input
BYTE#
Output
Symbol
C
IN1
C
IN2
C
OUT
Condition
V
I
= 0 V
V
O
= 0 V
Min.
—
—
—
3/8
FEDR26V51253L-02-02
OKI Semiconductor
MR26V51253L / P2ROM
ELECTRICAL CHARACTERISTICS
DC Characteristics
(V
CC
= 3.0 V to 3.6 V, Ta = 0 to 70°C)
Min.
Typ.
Max.
Unit
—
—
10
µA
—
—
10
µA
—
—
5
mA
—
—
5
mA
—
2.2
–0.5∗∗
2.4
—
—
—
—
—
—
80
V
CC
+0.5
∗
0.6
—
0.4
mA
V
V
V
V
Parameter
Input leakage current
Output leakage current
V
CC
power supply current
(Standby)
V
CC
power supply current
(Read)
Input “H” level
Input “L” level
Output “H” level
Output “L” level
Symbol
I
LI
I
LO
I
CCSC
I
CCST
I
CCA1
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
CE# = V
IL
, OE# = V
IH
f=5MHz
—
—
I
OH
= –1 mA
I
OL
= 2 mA
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)
Min.
Max.
Unit
100
—
ns
—
100
ns
35
—
ns
—
35
ns
—
100
ns
—
30
ns
0
20
ns
0
20
ns
0
—
ns
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
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)
4/8
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