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The 74F676 contains 16 flip-flops with provision for synchronous parallel or serial entry and serial output. When the mode (M) input is High, information present on the parallel data (D0D15) inputs is entered on the falling edge of the clock pulse (CP ) input signal.When M is Low, data is shifted out of the most significant bit position while information present on the serial (SI) input shifts into the least significant bit position. A High signal on the chip select (CS ) input prevents both parallel and serial operations.
The 16 bit shift register operates in one of three modes, as indicated in the shift register Function Table.
74F676 Maximum Ratings
SYMBOL
PARAMETER
RATING
UNIT
VCC
Supply voltage
0.5 to +7.0
V
VIN
Input voltage
0.5 to +7.0
V
IIN
Input current
30 to +5.0
mA
VOUT
Voltage applied to output in High output state
0.5 to +VCC
V
IOUT
Current applied to output in Low output state
40
mA
Tamb
Operating free-air temperature range
0 to +70
°C
Tstg
Storage temperature
65 to +150
°C
74F676 Features
16-bit parallel-to-serial conversion 16-bit serial-in, serial-out Chip select control Power supply current 48mA typical Shift frequency 110MHz tyical Available in 300mil-wide 24-pin Slim DIP package