M5M5256DFP-70VLL Datasheet, PDF (1/7 Pages) Mitsubishi Electric Semiconductor – 262144-BIT (32768-WORD BY 8-BIT) CMOS STATIC RAM

'97.4.7
MITSUBISHI LSIs
M5M5256DFP,VP,RV -70VLL,-85VLL,
-70VXL,-85VXL
262144-BIT (32768-WORD BY 8-BIT) CMOS STATIC RAM
DESCRIPTION
The M5M5256DFP,VP,RV is 262,144-bit CMOS static RAMs
organized as 32,768-words by 8-bits which is fabricated using
high-performance 3 polysilicon CMOS technology. The use of
resistive load NMOS cells and CMOS periphery results in a high
density and low power static RAM. Stand-by current is small
enough for battery back-up application. It is ideal for the memory
systems which require simple interface.
Especially the M5M5256DVP,RV are packaged in a 28-pin thin
small outline package.Two types of devices are available,
M5M5256DVP(normal lead bend type package),
M5M5256DRV(reverse lead bend type package). Using both types of
devices, it becomes very easy to design a printed circuit board.
FEATURE
Type
M5M5256DFP,VP,RV-70VLL
M5M5256DFP,VP,RV-85VLL
M5M5256DFP,VP,RV-70VXL
M5M5256DFP,VP,RV-85VXL
Access ^{Power supply current}
time _{Active Stand-by}
(max) _{(max) (max)}
70ns
85ns
70ns
85ns
25mA
(Vcc=3.6V)
12µA
(Vcc=3.6V)
2.4µA
(Vcc=3.6V)
0.05µA
(Vcc=3.0V,
Typical)
•Single +3.3±0.3V power supply
•No clocks, no refresh
•Data-Hold on +2.0V power supply
•Directly TTL compatible : all inputs and outputs
•Three-state outputs : OR-tie capability
•/OE prevents data contention in the I/O bus
•Common Data I/O
•Battery backup capability
•Low stand-by current··········0.05µA(typ.)
PACKAGE
M5M5256DFP : 28 pin 450 mil SOP
M5M5256DVP,RV : 28pin 8 X 13.4 mm² TSOP
APPLICATION
Small capacity memory units
PIN CONFIGURATION (TOP VIEW)
A14 ₁
A12 ₂
A7 3
A6 4
A5 5
A4 ₆
A3 7
A2 8
A1 9
A0 10
DQ1 11
DQ2 ₁₂
DQ3 13
GND ₁₄
28 Vcc
27 ^/W
26 A13
25 A8
24 A9
23 A11
22 /OE
21 A10
20 /S
19 DQ8
18 DQ7
17 DQ6
16 DQ5
15 DQ4
Outline 28P2W-C (DFP)
22 /OE
23 A11
24 A9
25 A8
26 A13
A10 21
/S ²⁰
DQ8 19
DQ7 18
DQ6 17
27 _/W
28Vcc
1 A14
2 A12
3 A7
4 A6
5 A5
6 A4
7 A3
M5M5256DVP
DQ5 16
DQ415
GND 14
DQ313
DQ212
DQ111
A0 10
A1 9
A2 8
Outline 28P2C-A (DVP)
7 A3
A2 8
6 A4
A1 9
5 A5
A0 10
4 A6
DQ1 11
3 A7
DQ2 12
2 A12
DQ3 13
1 A14 _M5M5256DRV GND 14
28 Vcc
DQ4 15
27 /W
DQ5 16
26 A13
DQ6 17
25 A8
DQ7 18
24 A9
DQ8 19
23 A11
22 /OE
/S 20
A10 21
Outline 28P2C-B (DRV)
MITSUBISHI
ELECTRIC
1