8277 ETC1 | Alldatasheet
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i DESCRIPTION 3. SEPARATE CLOCK lines (pins 7 and 10) PIN CONFIGURATION ‘The 8277 is a dual 8-Bit Shift Register which for each 8-bit register are provided as provides the designer with sixteen (16) bits well as a COMMON CLOCK line (pin 9) reser Cr] La vec of serial storage operating at a typical shift for all sixteen storage bits. aT rate of 20MHz. Features of the 8277 are: 4. Common RESET (pin 1). eazy [5] Ore 5. AND-OR gating to the input of each 8-bit Ora [7a] ove 1. TRUE and COMPLEMENT outputs are register is provided to accomplish the sa [Z] ose. provided on each register's eighth bit. multiplex function. 2. Positive edge triggering on clock input. 6. Direct replacement for 9328. ova [BY fz] oe 0 [2] [77] O00 cus OF] fia) exe ORDERING CODE (See Section 9 for further Package and Ordering Information) ow [7 [5] common cox PACKAGES COMMERCIAL RANGES MILITARY RANGES Vog=5¥ = 5%: Ta=0°C to +75°C Veo=s¥ 5%: Ta=-55°C 0 +125 | FUNCTION TABLE var 2s[so[ex| mow [Pin ~ tye Xx H Shift in “Oo” Ceramic DIP N8277F LJ H |X H Shift in “1” LOGIC DIAGRAM bo bt) wie > cee Semtt-——T > pee HH Vee * «89 csoce qo YE ee Jw GND =) we > a a CS CS on ( ) = Denotes pin numbers DC ELECTRICAL CHARACTERISTICS men | mest conomos Fie a | VoL Output LOW voltage Voc = 4.75V, lo. = 16mA [of] y | NH Input HIGH Current Voc = 5.25V, Vin = 4.5V Data, Reset, Clock separate 40 pA Data select, Clock common 80 HA ie Input LOW current Voc = §.25V, Vin = 0.4V Data, Reset, Clock separate -18 Data setect, Clock common 3.2 ‘coc Supply current Voc = 5.25V | fe fm | Syynntics 579
AC CHARACTERISTICS: Ta = 25° C (See Section 4 for Waveforms and Conditions) Cy = 18pF PARAMETER TEST CONDITIONS Ry = cof UNIT Ra = 84.59 tpHL Propagation delay 'PLH Clock to output tpHL Propagation delay tpLH Reset to output NOTE 1. For famiy de characteristics, 868 insi¢e front cover for 54/74 and S4H/74H, and see inside back cover tor 545/748 and 54L.S/74LS specications. AC SETUP REQUIREMENTS: Ta = 25°C (See Section 4 for Test Circults and Conditions) (ramen | TEST CONDITIONS [win max | ONT Pw seam me a Pee ee AC WAVEFORM n ne wow} eee ara s of \\ / \\ rn ae q a1 mt / \\