74F269SC Model Information

Features:

• Synchronous counting and loading
• Built-in lookahead carry capability
• Count frequency 100MHz
• Supply current 113mA typical
• 300mil slimline package

General Description:
The 74F269 is a fully synchronous 8-stage up/down counter featuring a preset capability for programmable operation, carry lookahead 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.

Ordering Information:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.

Logic Symbols Connection Diagram:
Not provided in the text, but typically includes pin connections and logic representation.

Function Table:
H = HIGH Voltage Level, L = LOW Voltage Level, X = Immaterial, = Transition LOW-to-HIGH

Pin Names and Descriptions:

• P0–P7: Parallel Data Inputs
• PE: Parallel Enable Input (Active LOW)
• U/D: Up-Down Count Control Input
• CEP: Count Enable Parallel Input (Active LOW)
• CET: Count Enable Trickle Input (Active LOW)
• CP: Clock Input
• TC: Terminal Count Output (Active LOW)
• Q0–Q7: Flip-Flop Outputs

Order Number and Package Number:

• 74F269SC: M24B
• Package Description: 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide

IEEE/IEC:
Not specified in the provided text.

Absolute Maximum Ratings:

• Storage Temperature: –65°C to +150°C
• Ambient Temperature Under Bias: –55°C to +125°C
• Junction Temperature Under Bias: –55°C to +150°C
• VCC Pin Potential to Ground Pin: –0.5V to +7.0V
• Input Voltage: –0.5V to +7.0V
• Input Current: –30mA to +5.0mA

Recommended Operating Conditions:

• Free Air Ambient Temperature: 0°C to +70°C
• Supply Voltage: +4.5V to +5.5V

DC Electrical Characteristics:

• VIH: Input HIGH Voltage Recognized as a HIGH Signal: 2.0 V
• VIL: Input LOW Voltage Recognized as a LOW Signal: 0.8 V
• VCD: Input Clamp Diode Voltage: Min. IIN = –18mA –1.2 V
• VOH: Output HIGH Voltage: 10% VCC Min. IOH = –1mA 2.5 V
• VOL: Output LOW Voltage: 10% VCC Min. IOL = 20mA 0.5 V
• IIH: Input HIGH Current: Max. VIN = 2.7V 5.0 µA
• IBVI: Input HIGH Current Breakdown Test: Max. VIN = 7.0V 7.0 µA
• ICEX: Output HIGH Leakage Current: Max. VOUT = VCC 50 µA
• VID: Input Leakage Test: 0.0 IID = 1.9µA, All Other Pins Grounded 4.75 V
• IOD: Output Leakage Circuit Current: 0.0 VIOD = 150mV, All Other Pins Grounded 3.75 µA
• IIL: Input LOW Current: Max. VIN = 0.5V –0.6 mA
• IOS: Output Short-circuit Current: Max. VOUT = 0.0V –60 –150 mA
• ICCH: Power Supply Current: Max. VO = HIGH 104 125 mA
• ICCL: Power Supply Current: Max. VO = LOW 113 135 mA

AC Electrical Characteristics:

• fMAX: Maximum Count Frequency: 100 MHz
• tPLH: Propagation Delay, CP to Qn (Count-Up): 3.5 8.0 ns
• tPHL: 4.5 10.5 ns
• tPLH: Propagation Delay, U/D to TC: 3.5 7.5 ns
• tPHL: 4.5 7.5 ns
• tPLH: Propagation Delay, CET to TC: 3.5 7.0 ns
• tPHL: 3.0 10.5 ns
• tPLH: Propagation Delay, CP to TC: 4.5 10.0 ns
• tPHL: 5.0 10.0 ns
• tPLH: Propagation Delay, CP to Qn (Count-Down): 3.5 10.5 ns
• tPHL: 4.5 10.5 ns
• tPLH: Propagation Delay, CP to Qn (Load): 3.5 7.0 ns
• tPHL: 4.0 7.0 ns

Physical Dimensions:

• Package Number M24B: 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide

Trademarks:
ACEx®, ActiveArray™, Bottomless™, Build it Now™, and many others. (Full list available on Fairchild's website or documentation.)

Disclaimer:
Fairchild Semiconductor reserves the right to make changes without further notice to any products to improve reliability, function, or design. Fairchild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others. These specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers these products.