74F269

INTEGRATED CIRCUITS 74F269 8-bit bidirectional binary counter Product specification IC15 Data Handbook 1996 Jan 05 Philips Semiconductors Philips Semiconductors Product specification 8–bit bidirectional binary counter 74F269 FEATURES Synchronous counting and loading Built-in look-ahead carry capability Count frequency 115MHz typ Supply current 95mA typ DESCRIPTION The 74F269 is a fully synchronous 8-stage Up/Down Counter featuring a preset capability for programmable operation, carry look-ahead for easy cascading and a U/D input to control the direction of counting. All state changes, whether in counting or parallel loading, are initiated by the rising edge of the clock. TYPICAL SUPPLY CURRENT (TOTAL) 95mA PIN CONFIGURATION U/D 1 Q0 Q1 Q2 Q3 Q4 GND Q5 Q6 2 3 4 5 6 7 8 9 24 PE 23 P0 22 P1 21 P2 20 P3 19 VCC 18 P4 17 P5 16 P6 15 P7 14 TC 13 CET Q7 10 CP 11 CEP 12 TYPE 74F269 TYPICAL fMAX 115MHz SF00834 ORDERING INFORMATION DESCRIPTION 24-Pin Plastic Slim DIP (300mil) 24-Pin Plastic SOL 24-Pin Plastic SSOP type II COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C N74F269N N74F269D N74F269DB PKG DWG # SOT222-1 SOT137-1 SOT340-1 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS P0 - P7 PE U/D CEP CET CP TC Q0 - Q7 Parallel Data inputs Parallel Enable input (active Low) Up/Down count control input Count Enable Parallel input (active Low) Count Enable Trickle input (active Low) Clock input Terminal Count output (active Low) Flip-flop outputs DESCRIPTION 74F(U....