5962-9221903M2A中文资料德州仪器数据手册PDF规格书

Function, Pinout, and Drive Compatible

With FCT and F Logic

Reduced VOH (Typically = 3.3 V) Versions of

Equivalent FCT Functions

Edge-Rate Control Circuitry for

Significantly Improved Noise

Characteristics

Ioff Supports Partial-Power-Down Mode

Operation

Matched Rise and Fall Times

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

Fully Compatible With TTL Input and

Output Logic Levels

Clock Enable for Address and Data

Synchronization Application

Eight Edge-Triggered D-Type Flip-Flops

CY54FCT377T

– 32-mA Output Sink Current

– 12-mA Output Source Current

CY74FCT377T

– 64-mA Output Sink Current

– 32-mA Output Source Current

description

The ’FCT377T devices have eight triggered D-type flip-flops with individual data (D) inputs. The common

buffered clock (CP) inputs load all flip-flops simultaneously when the clock-enable (CE) input is low. The register

is fully edge triggered. The state of each D input at one setup time before the low-to-high clock transition is

transferred to the corresponding flip-flop output (O). CE must be stable only one setup time prior to the

low-to-high clock transition for predictable operation.

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the

outputs, preventing damaging current backflow through the device when it is powered down.