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参数资料
| 型号： | M54HC670 |
| 厂商： | 意法半导体 |
| 英文描述： | 4 word×4 bit register file(3 state)(4字×4位注册文件(3态)) |
| 中文描述： | 4字× 4位寄存器文件（3国）（4字× 4位注册文件（3态）） |
| 文件页数： | 1/12页 |
| 文件大小： | 264K |
| 代理商： | M54HC670 |
M54HC670
M74HC670
October 1992
4 WORD X 4 BIT REGISTER FILE (3 STATE)
LOWPOWER DISSIPATION
I
CC
= 4
μ
A(MAX.) AT
T
A
= 25
°
C
.
HIGH NOISE IMMUNITY
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE
|I
OH
| = I
OL
= 4 mA (MIN.)
.
BALANCEDPROPAGATION DELAYS
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V TO6 V
.
PIN ANDFUNCTION COMPATIBLE
WITH 54/74LS670
B1R
(Plastic Package)
ORDER CODES :
M54HC670F1R
M74HC670B1R
M74HC670M1R
M74HC670C1R
F1R
(CeramicPackage)
M1R
(MicroPackage)
C1R
(Chip Carrier)
PIN CONNECTIONS
(top view)
NC =
No Internal
Connection
DESCRIPTION
The M54/74HC670 isahighspeedCMOS4WORD
X 4 BIT REGISTER FILE (3-STATE) fabricated in
silicon gate C
2
MOS technology. It has the same
high speed performance of LSTTL combined with
true
CMOS
low
power
M54HC/74HC670 is a 4 x 4 Register File organized
as fourwords by four bits. Separate read and write
inputs, both address and enable, allow simulta-
neousread and writeoperation. The3-state outputs
make it possible to connect up to 128outputs to in-
creasetheword capacityupto512words.Anynum-
ber of these devices can be operated in parallel to
generate an n-bitlength.Allinputs areequipped with
protection circuits against staticdischarge and tran-
sient excess voltage.
.
HIGH SPEED
t
PD
= 23 ns(TYP.) AT V
CC
= 5 V
consumption.
The
1/12
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