M74HC670 Datasheet, PDF (1/11 Pages) STMicroelectronics – 4 WORD x 4 BIT REGISTER FILE (3 STATE)

M74HC670
4 WORD x 4 BIT REGISTER FILE (3 STATE)
s HIGH SPEED :
t_PD = 22 ns (TYP.) at V_CC = 6V
s LOW POWER DISSIPATION:
I_CC =4µA(MAX.) at T_A=25°C
s HIGH NOISE IMMUNITY:
V_NIH = V_NIL = 28 % V_CC (MIN.)
s SYMMETRICAL OUTPUT IMPEDANCE:
|I_OH| = I_OL = 4mA (MIN)
s BALANCED PROPAGATION DELAYS:
t_PLH ≅ t_PHL
s WIDE OPERATING VOLTAGE RANGE:
V_CC (OPR) = 2V to 6V
s PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 670
DESCRIPTION
The M74HC670 is an high speed CMOS 4-
WORD x 4 BIT REGISTER FILE (3 STATE)
fabricated with silicon gate C²MOS technology.
The M74HC670 is 4 x 4 Register File organized as
four words by four bits. Separate read and write
inputs, both address and enable, allow
simultaneous read and write operation. The
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSOP
M74HC670B1R
M74HC670M1R
T&R
M74HC670RM13TR
M74HC670TTR
3-state outputs make it possible to connect up to
128 outputs to increase the word capacity up to
512 words. Any number of these devices can be
operated in parallel to generate an n-bit length.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
August 2001
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