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PDF TMM2078AD-45 Data sheet ( Hoja de datos )
| Número de pieza | TMM2078AD-45 | |
| Descripción | STATIC RAM | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TMM2078AD-45 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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TOSHIBA MOS MEMORY PRODUCT
4,096 WORD X 4 BIT STATIC RAM
SILICON MONOLITHIC
N-CHANNEL SILICON GATE MOS PROCESS
TMM2078AO-25, TMM2078AO-35
TMM2078AO-45
IDESCRI PTIONI
The TMM2078AD is a 16,384 bits high speed and low power static random access
memory organized as 4,096 words by 4 bits and operates from a single 5V supply.
Toshiba's high performance device technology provides both high speed and low power
features with a maximum access time of 25ns/35ns/45ns and maximum operating current
of 135mA/120mA/120mA When cg goes high, the device is deselected and placed in a
low power standby mode in which maximum standby current is 20mA.
Thus the TMM2078AD is most suitable for use in cache memory and high speed sto~age.
The T~lli2078AD is offered in a 22 pin standard cerdip package wi~h 0.3 inch width
for high densi~y assembly.
The TMM2078AD is fabricated with ion implanted N channel silicon gate MOS technology
for high performance and high reliability.
IFEATURESI
Fast access time
tACC=25ns: T}lli2078AD-25
tACC=35ns: T~lli2078AD-35
tACC=45ns: TMM2078AD-45
. Low power dissipation
1CC=135mA: THH2078AD-25
ICC=120mA: TMM2078AD-35
1CC=120mA: TM}12078AD-45
ISB=20mA
• Single jV power supply
Fully static operaion
• All inputs and outputs
Directly TTL Compatible
• Power down feature: CS=VIH
• Output buffer control: OE
• Three state outputs
• Inputs protected: All inputs protection against
static charge.
· Package: 22 pins standard cerdip package, 0.3 inch
width
A7 vec
A6 AS
A9
A4 AlO
l .. :3 All
A2 N.C.
Al 1/01
A oJ 1/02
CS 1/03
1/04-
WE
IPI N NAMESI
AO-All
Address Inputs
1/01-1/ 04 Data Input/Output
~ Chip Select Input
W£ Write Enable Input
OE Output Enable Input
VCC Power (+5V)
GND Ground
N.C. No Connection
ISLOCK DIAGRAMI
A5
A6
A7
AS
A9
AIO
All
I/O!
1/02
1/03
r /04
ME!.:CR Y
·:'E:.L ARRAY
( 128X32X4-)
---0 Vec
- - 0 OND
CS AO Al A2 A3 A4
CSo-~_<1""""""cs
WEo-+-<,.....--Q...J
OE~rt~rl~______________________________________~
- C-27 -
1 page  
WRITE CYCLE 2.
Add.
CS
WE
CJE
DOUT
TMM2078AO-25, TMM2078AO-35
TMM2078AO-45
twc
tcw
twp
HIGH IMPEDAN~E
tDS
tDH
Note:
1. In read cycle 2, all addresses are valid prior to or coincident with
CS transition low.
2. The operating temperature (Ta) is guaranteed with transverse air flow
exceeding 400 linear feet per minute.
- C-31 -
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet TMM2078AD-45.PDF ] | |
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