MM74HCT373MTCX
3-STATE Octal D-Type Latch . 3-STATE Octal D-Type Flip-Flop
General Description
The MM74HCT373 octal D-type latches and
MM74HCT374 Octal D-type flip flops advanced silicongate CMOS technology, which provides the inherent benefits of low power consumptioand wide power supply
range, but are LS-TTL input and output characteristic &
pin-out compatible. The 3-STATE outputs are capable of
driving 15 LS-TTL loads. All inputs are protected from damage due to static discharge by internal diodes to VCC and
ground.
Whethe MM74HCT373 LATCH ENABLE input is HIGH,
the Q outputs will follow the D inputs. Whethe LATCH
ENABLE goes LOW, data at the D inputs will be retained at
the outputs until LATCH ENABLE returns HIGH again.
Whea high logic level is applied to the OUTPUT CONTROL input, all outputs go to a high impedance state,
regardless of what signals are present at the other inputs
and the state of the storage elements.
The MM74HCT374 are positive edge triggered flip-flops.
Data at the D inputs, meeting the setup and hold time
requirements, are transferred to the Q outputs opositive
going transitions of the CLOCK (CK) input. Whea high
logic level is applied to the OUTPUT CONTROL (OC)
input, all outputs go to a high impedance state, regardless
of what signals are present at the other inputs and the state
of the storage elements.
MM74HCT devices are intended to interface betweeTTL
and NMOS components and standard CMOS devices.
These parts are also plug ireplacements for LS-TTL
devices and cabe used to reduce power consumptioin
existing designs.
Features
TTL input characteristic compatible
Typical propagatiodelay: 20 ns
Low input current: 1 µA maximum
Low quiescent current: 80 µA maximum
Compatible with bus-oriented systems
Output drive capability: 15 LS-TTL loads