M54HCTXXXF1R资料

2/11
元器件交易网
M54/M74HCT157 M54/M74HCT158
TRUTH TABLE
INPUTS STROBE H L L L L
X: DON’T CARE
OUTPUTS A X L H X X B X X X L H Y (HCT157) L L H L H Y (HCT158) H H L H L
B1R (Plastic Package)
F1R (Ceramic Package)
M1R (Micro Package)
C1R (Chip Carrier)
ORDER CODES : M54HCTXXXF1R M74HCTXXXM1R M74HCTXXXB1R M74HCTXXXC1R
PIN CONNECTIONS (top view)
o o
C C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied. (*) 500 mW: ≅ 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC
5.5 5.5 5.5
5/11
M54/M74HCT158
AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns)
Test Conditions Symbol Parameter VCC (V) 4.5 4.5 TA = 25 C 54HC and 74HC Min. Typ. Max. 8 16 15 25
April 1993
HCT158
NC = No Internal Connection
1/11
元器件交易网
M54/M74HCT157 M54/M74HCT158
CHIP CARRIER HCT157 HCT158
INPUT AND OUTPUT EQUIVALENT CIRCUIT
o o
C C
ns
4/11
元器件交易网
M54/M74HCT157 M54/M74HCT158
DC SPECIFICATIONS
Test Conditions Symbol Parameter VCC (V) 4.5 to 5.5 4.5 to 5.5 4.5 VI = IO=-20 µA VIH or IO=-4.0 mA V IL VI = IO= 20 µA VIH or IO= 4.0 mA V IL VI = VCC or GND VI = VCC or GND Per Input pin VI = 0.5V or V I = 2.4V Other Inputs at V CC or GND IO= 0 4.4 4.18 4.5 4.31 0.0 0.17 0.1 0.26 ±0.1 4 2.0 TA = 25 C 54HC and 74HC Min. Typ. Max. 2.0
PIN DESCRIPTION (for HCT157)
PIN No 1 2, 5, 11, 14 3, 6, 10, 13 4, 7, 9, 12 15 8 16 SYMBOL SELECT 1A to 4A 1B to 4B 1Y to 4Y STROBE GND VCC NAME AND FUNCTION Common Data Select Input Data Inputs From Source A Data Inputs From Source B Multiplexer Output Strobe Input Ground (0V) Positive Supply Voltage
V
V IL
0.8
0.8
0.8
V
V OH
4.4 4.13 0.1 0.33 ±1 40 2.9
4.4 4.10 0.1 V 0.4 ±1 80 3.0 µA µA mA V
VOL
Low Level Output Voltage
4.5
II ICC ∆ICC
Input Leakage Current Quiescent Supply Current Additional worst case supply current
元器件交易网
M54HCT157/158 M74HCT157/158
HCT157 QUAD 2 CHANNEL MULTIPLEXER HCT158 QUAD 2 CHANNEL MULTIPLEXER (INV.)
. . . . . . .
HIGH SPEED tPD = 21 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 4 µA (MAX.) AT TA = 25 °C COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.) VIL = 0.8V (MAX) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE IOH = IOL = 4 mA (MIN.) BALANCED PROPAGATION DELAYS tPLH = tPHL PIN AND FUNCTION COMPATIBLE WITH 54/74LS157/158
HCT157 DESCRIPTION The M54/74HCT157 and the M54/74HCT158 are high speed CMOS QUAD 2-CHANNEL MULTIPLEXERs fabricated with silicon gate C2MOS technology. They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. These devices consist of four 2-input digital multiplexers with common select and strobe inputs. The HCT158 is an inverting multiplexer while the HCT157 is a non-inverting multiplexer. When the STROBE input is held High, selection of data is inhibited and all the outputs become Low in the M74HCT157 and High in the M74HCT158. The SELECT decoding determines whether the A or B inputs get routed to their corresponding Y outputs. All inputs are equipped with protection circuits against static discharge and transient excess voltage. M54/74HCT devices are designed to directly inter2 face HSC MOS systems with TTL and NMOS components. They are also plug in replacements for LSTTL devices giving a reduction of power consumption.
SELECT X L L H H
IEC LOGIC SYMBOL HCT157 HCT158
LOGIC DIAGRAM HCT157 HCT158
3/11
元器件交易网
M54/M74HCT157 M54/M74HCT158
ABSOLUTE MAXIMUM RATINGS
Symbol VCC VI VO IIK IOK IO ICC or IGND PD Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Source Sink Current Per Output Pin DC VCC or Ground Current Power Dissipation Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 ± 20 ± 20 ± 25 ± 50 500 (*) -65 to +150 300 Unit V V V mA mA mA mA mW
PIN DESCRIPTION (for HCT158)
PIN No 1 2, 5, 11, 14 3, 6, 10, 13 4, 7, 9, 12 15 8 16 SYMBOL SELECT 1A to 4A 1B to 4B 1Y to 4Y STROBE GND VCC NAME AND FUNCTION Common Data Select Input Data Inputs From Source A Data Inputs From Source B Multiplexer Output Strobe Input Ground (0V) Positive Supply Voltage
ns ns
4.5
19
30
38
45
ns
4.5
17
27
34
41
ns
5 HCT157 HCT158 50 60
10
10
10
pF pF pF
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO Top tr, tf Parameter Supply Voltage Input Voltage Output Voltage Operating Temperature: M54HC Series M74HC Series Input Rise and Fall Time (VCC = 4.5 to 5.5V) Value 4.5 to 5.5 0 to VCC 0 to VCC -55 to +125 -40 to +85 0 to 500 Unit V V V
o
Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. 19 31 22 38 Unit
tTLH tTHL tPLH tPHL tPLH tPHL tPLH tPHL CIN CPD (*)
Output Transition Time Propagation Delay Time (A, B - Y) Propagation Delay Time (SELECT - Y) Propagation Delay Time (STROBE - Y) Input Capacitance Power Dissipation Capacitance
o
Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. 2.0 2.0 Unit
VIH
High Level Input Voltage Low Level Input Voltage High Level Output Voltage