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74F674

Part Number	74F674
Manufacturer	Philips
Description	16-bit serial/parallel-in / serial-out shift register
Published	May 28, 2005
Detailed Description	Philips Semiconductors Product specification 16-bit serial/parallel-in, serial-out shift register (3-State) 74F674 F...
Datasheet	74F674 PDF File

Overview

Philips Semiconductors Product specification 16-bit serial/parallel-in, serial-out shift register (3-State) 74F674 FEATURES • 16-bit serial I/O shift register • 16-bit parallel-in/serial-out converter • Recirculating serial shifting • Common serial data I/O pin (3-State) DESCRIPTION The 74F674 is a 16-bit shift register with serial and parallel load capability and serial output.
A single pin serves alternately as an input for serial entry or as a 3-State serial output.
In the serial out mode the data recirculates in the register.
Chip Select, Read/Write and Mode inputs provide control flexibility.
The 74F674 operates in one of four modes, as indicated in the Function table.
Hold: A High signal on the Chip Select (CS) input prevents clocking and forces the Serial Input/Output (SI/O) 3-State buffer into the high impedance state.
Serial load: Data present on the SI/O pin shifts into the register on the falling edge of CP.
Data enters the Q0 position and shifts toward Q15 on successive clocks.
Serial output: The SI/O 3-State buffer is active and the register contents are shifted out from Q15 and simultaneously shifted back into Q0.
Parallel load: Data present on D0–D15 is entered into the register on the falling edge of CP.
The SI/O 3-State buffer is active and represents the Q15 output.
To prevent false clocking, CP must be Low during a Low-to-High transition of CS.
PIN CONFIGURATION CS CP R/W NC M SI/O D0 D1 D2 1 2 3 4 5 6 7 8 9 24 VCC 23 D15 22 D14 21 D13 20 D12 19 D11 18 D10 17 D9 16 D8 15 D7 14 D6 13 D5 D3 10 D4 11 GND 12 SF01188 TYPE 74F674 TYPICAL fMAX 95MHz TYPICAL SUPPLY CURRENT (TOTAL) 55mA ORDERING INFORMATION DESCRIPTION 24-Pin Plastic Slim DIP (300mil) 24-Pin Plastic SOL COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C N74F674N N74F674D INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS D0–D15 CS CP M R/W SI/O Parallel data inputs Chip Select input (active Low) Clock Pulse input (active falling edge) Mode select input Read/Write input Serial...

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