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Details, datasheet, quote on part number:74HC/HCT165
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Datasheet text preview:
INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
· The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications · The IC06 74HC/HCT/HCU/HCMOS Logic Package Information · The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT165 8-bit parallel-in/serial-out shift register
Product specification File under Integrated Circuits, IC06 December 1990
Philips Semiconductors
Product specification
8-bit parallel-in/serial-out shift register
FEATURES · Asynchronous 8-bit parallel load · Synchronous serial input · Output capability: standard · ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT165 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT165 are 8-bit parallel-load or serial-in shift registers with complementary serial outputs (Q7 and Q7) available from the last stage. When the parallel load (PL) input is LOW, parallel data from the D0 to D7 inputs are loaded into the register asynchronously.
74HC/HCT165
When PL is HIGH, data enters the register serially at the Ds input and shifts one place to the right (Q0 Q1 Q2, etc.) with each positive-going clock transition. This feature allows parallel-to-serial converter expansion by tying the Q7 output to the DS input of the succeeding stage. The clock input is a gated-OR structure which allows one input to be used as an active LOW clock enable (CE) input. The pin assignment for the CP and CE inputs is arbitrary and can be reversed for layout convenience. The LOW-to-HIGH transition of input CE should only take place while CP HIGH for predictable operation. Either the CP or the CE should be HIGH before the LOW-to-HIGH transition of PL to prevent shifting the data when PL is activated. APPLICATIONS · Parallel-to-serial data conversion
QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns TYPICAL SYMBOL tPHL/ tPLH PARAMETER propagation delay CP to Q7, Q7 PL to Q7, Q7 D7 to Q7, Q7 maximum clock frequency input capacitance power dissipation capacitance per package notes 1 and 2 CONDITIONS HC CL = 15 pF; VCC = 5 V 16 15 11 56 3.5 35 14 17 11 48 3.5 35 ns ns ns MHz pF pF HCT UNIT
fmax CI CPD Notes
1. CPD is used to determine the dynamic power dissipation (PD in µW): PD = CPD × VCC2 × fi + (CL × VCC2 × fo) where: fi = input frequency in MHz fo = output frequency in MHz (CL × VCC2 × fo) = sum of outputs CL = output load capacitance in pF VCC = supply voltage in V 2. For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC - 1.5 V ORDERING INFORMATION See "74HC/HCT/HCU/HCMOS Logic Package Information". December 1990 2
Philips Semiconductors
Product specification
8-bit parallel-in/serial-out shift register
PIN DESCRIPTION PIN NO. 1 7 9 2 8 10 11, 12, 13, 14, 3, 4, 5, 6 15 16 SYMBOL PL Q7 Q7 CP GND Ds D0 to D7 CE VCC NAME AND FUNCTION asynchronous parallel load input (active LOW) complementary output from the last stage serial output from the last stage clock input (LOW-to-HIGH edge-triggered) ground (0 V) serial data input parallel data inputs clock enable input (active LOW) positive supply voltage
74HC/HCT165
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3
Philips Semiconductors
Product specification
8-bit parallel-in/serial-out shift register
74HC/HCT165
Fig.4 Functional diagram.
FUNCTION TABLE OPERATING MODES PL parallel load L L H H H X X L L H CE X X X INPUTS CP X X l h X DS L H X X X D0-D7 L H L H q0 Qn REGISTERS Q0 Q1-Q6 L-L H-H q0-q5 q0-q5 q1-q6 L H q6 q6 q7 OUTPUTS Q7 H L q6 q6 q7 Q7
serial shift hold "do nothing" Note
1. H = HIGH voltage level h = HIGH voltage level one set-up time prior to the LOW-to-HIGH clock transition L = LOW voltage level I = LOW voltage level one set-up time prior to the LOW-to-HIGH clock transition q = lower case letters indicate the state of the referenced output one set-up time prior to the LOW-to-HIGH clock transition X = don't care = LOW-to-HIGH clock transition
Fig.5 Logic diagram.
December 1990
4
Philips Semiconductors
Product specification
8-bit parallel-in/serial-out shift register
DC CHARACTERISTICS FOR 74HC For the DC characteristics see "74HC/HCT/HCU/HCMOS Logic Family Specifications". Output capability: standard ICC category: MSI AC CHARACTERISTICS FOR HC GND = 0 V; tr = tf = 6 ns; CL = 50 pF Tamb (°C) 74HC SYMBOL PARAMETER min. tPHL/ tPLH propagation delay CE, CP to Q7, Q7 propagation delay PL to Q7, Q7 propagation delay D7 to Q7, Q7 output transition time clock pulse width HIGH or LOW parallel load pulse width; LOW removal time PL to CP, CE set-up time Ds to CP, CE set-up time CE to CP; CP to CE set-up time Dn to PL 80 16 14 80 16 14 100 20 17 80 16 14 80 16 14 80 16 14 +25 typ. 52 19 15 50 18 14 36 13 10 19 7 6 17 6 5 14 5 4 22 8 6 11 4 3 17 6 5 22 8 6 max. 165 33 28 165 33 28 120 24 20 75 15 13 100 20 17 100 20 17 125 25 21 100 20 17 100 20 17 100 20 17 -40 to +85 min. max. 205 41 35 205 41 35 150 30 26 95 19 16 120 24 20 120 24 20 150 30 26 120 24 20 120 24 20 120 24 20 -40 to +125 min. max. 250 50 43 250 50 43 180 36 31 110 22 19 ns UNIT
74HC/HCT165
TEST CONDITIONS VCC WAVEFORMS (V) 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 Fig.6
tPHL/ tPLH
ns
Fig.6
tPHL/ tPLH
ns
Fig.6
tTHL/ tTLH
ns
Fig.6
tW
ns
Fig.6
tW
ns
Fig.6
trem
ns
Fig.6
tsu
ns
Fig.6
tsu
ns
Fig.6
tsu
ns
Fig.6
December 1990
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