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Part: M74HC7640
Category:
Logic
-> HC/HCT->High Speed CMOS
Description: Octal Bus Transceiver (3-STATE INVERTING)
Company: ST Microelectronics, Inc.
Datasheet: Download M74HC7640 datasheet File size : 53 kB
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Datasheet text preview:
M74HC7640
OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS (INVERTING)
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H IGH SPEED: tPD = 13ns (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC = 4µA(MAX.) at TA=25°C H IGH NOISE IMMUNITY: VH = 1.2 V (TYP.) at VCC = 6V SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 6mA (MIN) BALANCED PROPAGATION DELAYS: tPLH tPHL W IDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 7640
DIP
SOP
TSSOP
ORDER CODES
PACKAGE DIP SOP TSSOP TUBE M74HC7640B1R M74HC7640M1R T&R M74HC7640RM13TR M74HC7640TTR
DESCRIPTION The 74HC7640 is an advanced high-speed CMOS OCTAL BUS TRANSCEIVER (3-STATE) fabricated with silicon gate C2MOS technology. This IC is intended for two-way asynchronous communication between data buses, and the direction of data transmission is determined by DIR input. The enable input G can be used to
disable the device so that the buses are effectively isolated. This device have a hysteresis characteristics with each input so can be used as a line receiver, etc. All inputs are equipped with protection circuits against static discharge and transient excess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
August 2001
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M74HC7640
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No 1 2, 3, 4, 5, 6, 7, 8, 9 18, 17, 16, 15, 14, 13, 12, 11 19 10 20 SYMBOL DIR A1 to A8 B1 to B8 NAME AND FUNCTION Directional Control Data Inputs/Outputs Data Inputs/Outputs
G GND V CC
Output Enable Input Ground (0V) Positive Supply Voltage
TRUTH TABLE
INPUTS G L L H
X : Don't Care Z : High Impedance
FUNCTION OUTPUT DIR L H X A BUS OUTPUT INPUT Z B BUS INPUT OUTPUT Z A=B B=A Z
ABSOLUTE MAXIMUM RATINGS
Symbol V CC VI VO IIK IOK IO Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 ± 20 ± 20 ± 35 ± 70 500(*) -65 to +150 300 Unit V V V mA mA mA mA mW °C °C
ICC or IGND DC VCC or Ground Current PD Power Dissipation Tstg TL Storage Temperature Lead Temperature (10 sec)
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied (*) 500mW at 65 °C; derate to 300mW by 10mW/°C from 65°C to 85°C
RECOMMENDED OPERATING CONDITIONS
Symbol V CC VI VO Top Supply Voltage Input Voltage Output Voltage Operating Temperature Parameter Value 2 to 6 0 to VCC 0 to VCC -55 to 125 Unit V V V °C
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M74HC7640
DC SPECIFICATIONS
Test Condition Symbol Parameter VCC (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 4.5 6.0 VOL Low Level Output Voltage 2.0 4.5 6.0 4.5 6.0 II IOZ Input Leakage Current High Impedance Output Leakage Current Quiescent Supply Current 6.0 6.0 6.0 IO=-20 µA IO=-20 µA IO=-20 µA IO=-6.0 mA IO=-7.8 mA IO=20 µA IO=20 µA IO=20 µA IO=6.0 mA IO=7.8 mA VI = VIH or VIL VO = VCC or GND VI = VCC or GND VI = VCC or GND TA = 25°C Min. 1.0 2.3 3.0 0.3 1.13 1.5 0.3 0.6 0.8 1.5 3.15 4.2 Typ. 1.25 2.7 3.5 0.65 1.6 2.3 0.6 1.1 1.2 Max. 1.5 3.15 4.2 0.9 2.0 2.6 1.0 1.4 1.7 Value -40 to 85°C Min. 1.0 2.3 3.0 0.3 1.13 1.5 0.3 0.6 0.8 1.5 3.15 4.2 Max. 1.5 3.15 4.2 0.9 2.0 2.6 1.0 1.4 1.7 -55 to 125°C Min. 1.0 2.3 3.0 0.3 1.13 1.5 0.3 0.6 0.8 1.5 3.15 4.2 Max. 1.5 3.15 4.2 0.9 2.0 2.6 1.0 1.4 1.7 V Unit
VP
Positive Threshold Voltage (An, Bn Inputs) Negative Threshold Voltage (An, Bn Inputs) Hysteresis Voltage (An, Bn Inputs) High Level Input Voltage (DIR, G Inputs) Low Level Input Voltage (DIR, G Inputs) High Level Output Voltage
VN
V
VH
V
VIH
V 0.5 1.35 1.8
VIL
0.5 1.35 1.8 1.9 4.4 5.9 4.18 5.68 2.0 4.5 6.0 4.31 5.8 0.0 0.0 0.0 0.17 0.18 0.1 0.1 0.1 0.26 0.26 ± 0.1 ± 0.5 4 1.9 4.4 5.9 4.13 5.63
0.5 1.35 1.8 1.9 4.4 5.9 4.10 5.60 0.1 0.1 0.1 0.33 0.33 ±1 ±5 40
V
VOH
V
0.1 0.1 0.1 0.40 0.40 ±1 ± 10 80 µA µA µA V
ICC
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Others parts begin by m7
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