CY74FCT373T General Description
The 'FCT373T devices consist of eight latches with 3-state outputs for bus-organized applications. When the latch-enable (LE) input is high, the flip-flops appear transparent to the data. Data that meets the required setup times are latched when LE transitions from high to low. Data appears on the bus when the output-enable (OE ) input is low. When OE is high, the bus output is in the high-impedance state. In this mode, data can be entered into the latches.
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.
CY74FCT373T Maximum Ratings
Supply voltage range to ground potential . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
DC input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 7 V
DC output voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 7 V
DC output current (maximum sink current/pin) . . . . . . . . . . . . . . . . . . . . .120 mA
Package thermal impedance, JA (see Note 1): Q package. . . . . . . . . . .. 68°C/W
SO package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58°C/W
Ambient temperature range with power applied, TA . . . . . . . . .65°C to 135°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . .65°C to 150°C
CY74FCT373T Features
`Function and Pinout 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
`ESD Protection Exceeds JESD 22
2000-V Human-Body Model (A114-A)
200-V Machine Model (A115-A)
1000-V Charged-Device Model (C101)
`Matched Rise and Fall Times
`Fully Compatible With TTL Input and Output Logic Levels
`3-State Outputs
`CY54FCT373T
32-mA Output Sink Current
12-mA Output Source Current
`CY74FCT373T
64-mA Output Sink Current
32-mA Output Source Current
CY74FCT373T Connection Diagram
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