M54HC593 Datasheet, PDF (1/12 Pages) STMicroelectronics – 8 BIT BINARY COUNTER WITH INPUT REGISTER 3-STATE

M54HC593
M74HC593
8 BIT BINARY COUNTER WITH INPUT REGISTER (3-STATE)
. HIGH SPEED
fMAX = 80 MHz (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION
I_CC = 4 µA (MAX.) AT T_A = 25 °C
. OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS FOR RCO
15 LSTTL LOADS FOR Qn
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. SYMMETRICAL OUTPUT IMPEDANCE
I_OL = IOH = 6 mA (MIN.) for Qn
I_OL = IOH = 4 mA (MIN.) for RCO
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
. WIDE OPERATING VOLTAGE RANGE
V_CC (OPR) = 2 V TO 6 V
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS593
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M 54HC 59 3F 1R
M 74H C5 93 M1 R
M 74HC 59 3B 1R
M 74H C5 93 C1 R
PIN CONNECTIONS (top view)
DESCRIPTION
The M54/74HC593 is a high speed CMOS 8 BIT
REGISTER COUNTER (3 STATE) fabricated with
silicon gate C²MOS technology. It has the same
high speed performance of LSTTL combined with
true CMOS low power consumption.
The M54/74HC593 consists of a parallel input, 8 bit
storage register feeding an 8 bit binary counter. Both
the register and the counter have individual positive
edge-triggered clock. In addition, the counter has di-
rect load and clear functions. Expansion is easily ac-
complished by connecting RCO of first stage to the
count enable CCKEN, of the second stage etc.
The M54/74HC593 comes in a 20 pin package and
has 3 state I/O, which provides parallel counter out-
puts.
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
NC =
No Internal
Connection
October 1993
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