STMicroelectronics M54HC7245 Octal bus transceiver (3-state):hc7645 noninverting hc7640 inverting ,hc7643 inverting/noninverting Datasheet

M54HC7245/7640/7643/7645
M74HC7245/7640/7643/7645
OCTAL BUS TRANSCEIVER (3-STATE): HC7645 NON INVERTING
HC7640 INVERTING , HC7643 INVERTING/NON INVERTING
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HIGH SPEED
tPD = 12 ns (TYP.) at VCC = 5V
LOW POWER DISSIPATION
o
ICC = 4 µA (MAX.) at TA = 25 C
HIGH NOISE IMMUNITY
VH = 1.1 (TYP.) at VCC = 5V
OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 6 mA (MIN)
BALANCED PROPAGATION DELAYS
tPLH = tPHL
WIDE OPERATING RANGE
VCC (OPR) = 2V to 6V
PIN AND FUNCTION COMPATIBLE
WITH 54/74LS245/640/643
B1R
(Plastic Package)
F1R
(Ceramic Package)
M1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M54HCXXXXF1R
M74HCXXXXM1R
M74HCXXXXB1R
M74HCXXXXC1R
DESCRIPTION
The M54/74HC7245 HC7640, HC7643 and HC7645
utilise silicon gate C2MOS technology to achive
operating speeds equivalent to LSTTL devices.
Along with the low power dissipation and high noise
2
immunity of standads C MOS integrated circuit, it
possesses the capability to drive 15 LSTTL loads.
These IC’s are intended for two-way asynchronous
communication between data buses, and the
direction of data trasmission is determined by DIR
input. The enable input (G) can be used to disable the
device so that the buses are effectively isolated.
The HC7245/640/7643/7645 have the same pin
configuration and function as the HC245/640/643
and they have a hysteresis characteristics with each
input, so HC7245/7640/7643/7645 can be used as a
line receiver, etc. All input are equipped with
protection circuits against static discharge and
transient excess voltage.
IT IS PROHIBITED TO APPLY A SIGNAL TO A BUS
TERMINAL WHEN IT IS IN OUTPUT MODE AND
WHEN A BUS THERMINAL IS FLOATING (HIGH
IMPEDANCE STATE), IT IS REQUESTED TO FIX
THE INPUT LEVEL BY MEANS OF EXTERNAL
PULL DOWN OR PULL UP RESISTOR.
PIN CONNECTION (top view)
HC7640
HC7643
HC7645/HC7245
HC7245 is electrically and funcutionally the same as the HC7645
January 1994
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M54/M74HC7245/7640/7643/7645
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
SYMBOL
1
2, 3, 4, 5,
6, 7, 8, 9
DIR
A1 to A8
Directional Control
Data Inputs/Outputs
NAME AND FUNCTION
18, 17, 16,
15, 14, 13,
12, 11
B1 to B8
Data Inputs/Outputs
19
G
Output Enabel Input
(Active LOW)
10
GND
Ground (0V)
20
VCC
Positive Supply Voltage
IEC LOGIC SYMBOLS
HC7640
HC7643
HC7645
TRUTH TABLE
INPUT
OUTPUT
DIR
L
A BUS
OUTPUT
B BUS
INPUT
HC7640
A=B
HC7643
A=B
HC7645/7245
A=B
L
H
INPUT
OUTPUT
B=A
B=A
B=A
H
X
Z
Z
Z
Z
Z
X: ”H” or ”L”
Z: High impedance
2/10
FUNCTION
G
L
M54/M74HC7245/ 7640/7643/7645
ABSOLUTE MAXIMUM RATINGS
Symbol
Value
Unit
VCC
VI
Supply Voltage
DC Input Voltage
-0.5 to +7
-0.5 to VCC + 0.5
V
V
VO
DC Output Voltage
-0.5 to VCC + 0.5
V
IIK
IOK
DC Input Diode Current
DC Output Diode Current
± 20
± 20
mA
mA
IO
DC Output Source Sink Current Per Output Pin
± 35
mA
DC VCC or Ground Current
± 70
mA
500 (*)
mW
ICC or IGND
Parameter
PD
Power Dissipation
Tstg
TL
Storage Temperature
Lead Temperature (10 sec)
-65 to +150
300
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
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Parameter
Supply Voltage
VI
Input Voltage
VO
Top
Output Voltage
Operating Temperature:
M54HC Series
M74HC Series
Value
2 to 6
Unit
V
0 to VCC
V
0 to VCC
-55 to +125
-40 to +85
V
C
o
C
o
3/10
M54/M74HC7245/7640/7643/7645
DC SPECIFICATIONS
Test Conditions
Value
TA = 25 oC
54HC and 74HC
Min. Typ. Max.
-40 to 85 oC -55 to 125 oC
74HC
54HC
Min. Max. Min. Max.
Symbol
Parameter
VCC
(V)
VP
Positive
Threshold Voltage
(An, Bn inputs)
2.0
1
1.25
1.5
1
1.5
1
1.5
4.5
6.0
2.3
3
2.7
3.5
3.15
4.2
2.3
3
3.15
4.2
2.3
3
3.15
4.2
2.0
0.3
0.65
0.9
0.3
0.9
0.3
0.9
4.5
1.13
1.6
2
1.13
2
1.13
2
6.0
1.5
2.3
2.6
1.5
2.6
1.5
2.6
2.0
0.3
0.6
1
0.3
1
0.3
1
4.5
6.0
0.6
0.8
1.1
1.2
1.4
1.7
0.6
0.8
1.4
1.7
0.6
0.8
1.4
1.7
VN
VH
VIH
V IL
V OH
Negative
Threshold Voltage
(An, Bn inputs)
Hysteresiis
Voltage
(An, Bn inputs)
High Level Input
Voltage
(DIR, G inputs)
Low Level Input
Voltage
(DIR, G inputs)
High Level
Output Voltage
2.0
1.5
1.5
1.5
4.5
6.0
3.15
4.2
3.15
4.2
3.15
4.2
2.0
0.5
0.5
0.5
1.35
1.8
1.35
1.8
1.35
1.8
4.5
6.0
4.5
VOL
Low Level Output
Voltage
6.0
2.0
4.5
6.0
4.5
6.0
II
IOZ
ICC
4/10
Input Leakage
Current
Quiescent Supply
Current
Quiescent Supply
Current
6.0
V
V
V
V
4.5
6.0
2.0
Unit
V
VI =
IO=-20 µA
VIH
or
V IL IO=-6.0 mA
1.9
2.0
1.9
1.9
4.4
5.9
4.5
6.0
4.4
5.9
4.4
5.9
4.18
4.31
4.13
4.10
IO=-7.8 mA
5.68
5.8
0.0
5.63
0.1
0.1
0.1
0.0
0.0
0.1
0.1
0.1
0.1
0.1
0.1
0.17
0.26
0.33
0.40
0.18
0.26
±0.1
0.33
±1
0.40
±1
µA
VI =
IO= 20 µA
VIH
or
V IL IO= 6.0 mA
IO= 7.8 mA
VI = VCC or GND
V
5.60
V
6.0
VI = VCC or GND
æ0.5
±5
±1
µA
6.0
VI = VCC or GND
4
40
80
µA
M54/M74HC7245/ 7640/7643/7645
AC ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns)
Test Conditions
Value
Symbol
Parameter
VCC
(V)
TA = 25 oC
54HC and 74HC
Min. Typ. Max.
tTLH
tTHL
Output Transition
Time
2.0
25
60
75
90
4.5
6.0
7
6
12
10
15
13
18
15
tPLH
tPHL
Propagation
Delay Time
2.0
61
125
156
190
4.5
15
25
31
38
tPZL
tPZH
Output Enable
Time
tPLZ
tPHZ
Output Disable
Time
CIN
Input Capacitance
COUT
Output
Capacitance
Power Dissipation
Capacitance
CPD (*)
-40 to 85 oC -55 to 125 oC
74HC
54HC
Min. Max. Min. Max.
Unit
ns
ns
6.0
13
21
27
32
2.0
77
150
188
225
19
16
30
26
38
32
45
38
84
150
188
225
21
18
30
26
38
32
45
38
ns
5
10
10
10
pF
4.5
6.0
RL = 1 KΩ
2.0
4.5
6.0
RL = 1 KΩ
ns
pF
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC/4 (per Gate)
SWITCHING CHARACTERISTICS TEST WAVEFORM
V CC
GND
V CC
GND
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M54/M74HC7245/7640/7643/7645
Plastic DIP20 (0.25) MECHANICAL DATA
mm
DIM.
MIN.
a1
0.254
B
1.39
TYP.
inch
MAX.
MIN.
TYP.
MAX.
0.010
1.65
0.055
0.065
b
0.45
0.018
b1
0.25
0.010
D
25.4
1.000
E
8.5
0.335
e
2.54
0.100
e3
22.86
0.900
F
7.1
0.280
I
3.93
0.155
L
Z
3.3
0.130
1.34
0.053
P001J
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M54/M74HC7245/ 7640/7643/7645
Ceramic DIP20 MECHANICAL DATA
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
25
0.984
B
7.8
0.307
D
E
3.3
0.5
e3
0.130
1.78
0.020
22.86
0.070
0.900
F
2.29
2.79
0.090
0.110
G
0.4
0.55
0.016
0.022
I
1.27
1.52
0.050
0.060
L
0.22
0.31
0.009
0.012
M
0.51
1.27
0.020
0.050
N1
P
Q
4° (min.), 15° (max.)
7.9
8.13
5.71
0.311
0.320
0.225
P057H
7/10
M54/M74HC7245/7640/7643/7645
SO20 MECHANICAL DATA
mm
DIM.
MIN.
TYP.
A
a1
inch
MAX.
MIN.
TYP.
2.65
0.10
0.104
0.20
a2
MAX.
0.004
0.007
2.45
0.096
b
0.35
0.49
0.013
0.019
b1
0.23
0.32
0.009
0.012
C
0.50
0.020
c1
45° (typ.)
D
12.60
13.00
0.496
0.512
E
10.00
10.65
0.393
0.419
e
1.27
0.050
e3
11.43
0.450
F
7.40
7.60
0.291
0.299
L
0.50
1.27
0.19
0.050
M
S
0.75
0.029
8° (max.)
P013L
8/10
M54/M74HC7245/ 7640/7643/7645
PLCC20 MECHANICAL DATA
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
9.78
10.03
0.385
0.395
B
8.89
9.04
0.350
0.356
D
4.2
4.57
0.165
0.180
d1
2.54
0.100
d2
0.56
0.022
E
7.37
8.38
0.290
0.330
e
1.27
0.050
e3
5.08
0.200
F
0.38
0.015
G
0.101
0.004
M
1.27
0.050
M1
1.14
0.045
P027A
9/10
M54/M74HC7245/7640/7643/7645
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
 1994 SGS-THOMSON Microelectronics - All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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10/10
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