74ACQ657

Features:

· Guaranteed simultaneous switching noise level and dynamic threshold performance
· Guaranteed pin-to-pin skew AC performance
· Combines the 245 and the 280 functions in one package
· 300 mil 24-pin slim dual-in-line package
· Outputs source/sink 24 mA
· ACTQ has TTL-compatible inputs


Pinout




Specifications

Supply Voltage (V_CC)                        −0.5V to +7.0V
DC Input Diode Current (I_IK)
    V_I = −0.5V                                              −20 MA
    V_I = V_CC + 0.5V                                      +20 mA
DC Input Voltage (V_I)                −0.5V to V_CC +0.5V
DC Output Diode Current (I_OK)
    V_O = −0.5V                                            −20 mA
    V_O =V_CC + 0.5V                                      +20 mA
DC Output Voltage (V_O)             −0.5V to V_CC +0.5V
DC Output Source
    or Sink Current (I_O)                                 ±50 mA
DC VCCor Ground Current
    per Output Pin (I_CC or IGND)                    ±50 mA
Storage Temperature (T_STG)      −65°C to +150°C
DC Latch-up Source
Sink Current                                              ±300 mA
Junction Temperature (T_J)
PDIP                                                             140°C

Note 1: Absolute maximum ratings are those values beyond which damage to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation of FACT circuits outside databook specifications.


Description

The 74ACQ657 contains eight non-inverting buffers with 3-STATE outputs and an 8-bit parity generator/ checker. Intended for bus oriented applications, the device combines the 245 and the 280 functions in one package.

The 74ACQ657 utilizes Fairchild Quiet Series^TM technology to guarantee quiet output switching and improved dynamic threshold performance. FACT Quiet Series features GTO output control and undershoot corrector in addition to a split ground bus or superior performance.