TI SN75127

SLLS108B − D239, JANUARY 1977 − REVISED FEBRUARY 1993
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SN75125 . . . D OR N PACKAGE
Meets IBM 360/370 I/O Specification
Input Resistance . . . 7 kΩ to 20 kΩ
Output Compatible With TTL
Schottky-Clamped Transistors
Operates From Single 5-V Supply
High Speed . . . Low Propagation Delay
Ratio Specification for Propagation Delay
Time, Low-to-High/High-to-Low
Seven Channels in One 16-Pin Package
Standard VCC and Ground Positioning on
SN75127
(TOP VIEW)
1A
2A
3A
4A
5A
6A
7A
GND
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
1Y
VCC
3Y
4Y
5Y
6Y
7Y
2Y
SN75127 . . . D OR N PACKAGE
(TOP VIEW)
description
The SN75125 and SN75127 are monolithic
seven-channel line receivers designed to satisfy
the requirements of the IBM System 360/370
input/output interface specifications. Special
low-power design and Schottky-clamped
transistors allow for low supply-current
requirements while maintaining fast switching
speeds and high-current TTL outputs.
1A
2A
3A
4A
5A
6A
7A
GND
The SN75125 and SN75127 are characterized for
operation from 0°C to 70°C.
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
VCC
1Y
2Y
3Y
4Y
5Y
6Y
7Y
THE SN75125 IS NOT
RECOMMENDED FOR NEW DESIGN
logic symbols†
SN75125
1A
2A
3A
4A
5A
6A
7A
1
2
3
4
5
SN75127
16 1Y
9 2Y
1A
2A
14 3Y
13 4Y
6
12 5Y
11 6Y
7
10 7Y
3A
4A
5A
6A
7A
1
2
3
4
5
6
7
15 1Y
14 2Y
13 3Y
12 4Y
11 5Y
10 6Y
9 7Y
† These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Copyright  1993, Texas Instruments Incorporated
! "#$ ! %#&'" ($)
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•
2−1
SLLS108B − D239, JANUARY 1977 − REVISED FEBRUARY 1993
schematic (each receiver)
Common Circuitry
To Other
Channels
VCC
150 Ω
NOM
A
Input
Y
Output
12 kΩ
NOM
GND
To Other
Channels
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Input voltage range: SN75125 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . − 0.15 V to 7 V
SN75127 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . − 2 V to 7 V
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . − 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
NOTES: 1. All voltage values are with respect to network ground terminal.
DISSIPATION RATING TABLE
TA ≤ 25°C
POWER RATING
OPERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
D
950 mW
7.6 mW/°C
608 mW
N
1050 mW
9.2 mW/°C
736 mW
PACKAGE
2−2
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POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
•
SLLS108B − D239, JANUARY 1977 − REVISED FEBRUARY 1993
recommended operating conditions
MIN
NOM
MAX
Supply voltage, VCC
4.5
5
5.5
High-level input voltage, VIH
1.7
V
V
Low-level input voltage, VIL
High-level output current, IOH
Low-level output current, IOL
Operating free-air temperature, TA
UNIT
0
0.7
V
−0.4
mA
16
mA
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VOH
VOL
High-level output voltage
IIH
IIL
High-level input current
TEST CONDITIONS
VCC = 4.5 V,
VCC = 4.5 V,
VIL = 0.7 V,
VIH = 1.7 V,
Low-level input current
VCC = 5.5 V,
VCC = 5.5 V,
VI = 3.11 V
VI = 0.15 V
IOS
Short-circuit output current‡
VCC = 5.5 V,
VO = 0
ri
Input resistance
VCC = 4.5 V, 0 V, or open,
VCC = 5.5 V,
IOH = − 0.4 mA,
ICC
Low-level output voltage
Supply current
VCC = 5.5 V,
† All typical values are at VCC = 5 V, TA = 25°C.
‡ Not more than one output should be shorted at a time.
IOH = − 0.4 mA
IOL = 16 mA
MIN
TYP†
2.4
3.1
IOL = 16 mA,
V
0.5
V
0.3
0.42
mA
7
All inputs at 4 V
UNIT
0.4
−18
∆VI = 0.15 V to 4.15 V
All inputs at 0.7 V
MAX
30
µA
−60
mA
20
kΩ
15
25
mA
28
47
mA
switching characteristics, VCC = 5 V, TA = 25°C
PARAMETER
tPLH
tPHL
tPLH
tPHL
tTLH
tTHL
MIN
TYP
MAX
Propagation delay time, low-to-high-level output
TEST CONDITIONS
7
14
25
ns
Propagation delay time, high-to-low-level output
10
18
30
ns
0.5
0.8
1.3
Transition time, low-to-high-level output
1
7
12
ns
Transition time, high-to-low-level output
1
3
12
ns
RL = 400 Ω,
Ω CL = 50 pF,
Ratio of propagation delay times
•
See Figure 1
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•
UNIT
2−3
SLLS108B − D239, JANUARY 1977 − REVISED FEBRUARY 1993
PARAMETER MEASUREMENT INFORMATION
VCC
RL = 400 Ω
(see Note C)
Output
Pulse
Generator
(see Note A)
CL = 50 pF
(see Note B)
TEST CIRCUIT
100 ns
10 ns
10 ns
90%
0.7 V
Input
3V
90%
1.7 V
10%
10%
tPLH
tPHL
2V
Output
0V
VOH
2V
1.2 V
0.8 V
1.5 V
0.8 V
tTHL
VOL
tTLH
VOLTAGE WAVEFORMS
NOTES: A. The pulse generator has the following characteristics: ZO ≈ 50 Ω, PRR ≤ 5 MHz.
B. CL includes probe and jig capacitance.
C. All diodes are 1N3064 or equivalent.
Figure 1. Tests Circuit and Voltage Waveforms
2−4
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•
SLLS108B − D239, JANUARY 1977 − REVISED FEBRUARY 1993
TYPICAL CHARACTERISTICS
ÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ
VOLTAGE TRANSFER CHARACTERISTICS
5
VOLTAGE TRANSFER CHARACTERISTICS
5
VCC = 5.5 V
TA = 70°C
VCC = 5 V
4
VO
V
O − Output Voltage − V
VO
V
O − Output Voltage − V
4
ÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ
3
TA = 25°C
2
TA = 0°C
1
ÏÏÏÏ
ÏÏÏÏ
VCC = 4.5 V
3
2
ÏÏÏÏ
ÏÏÏÏ
1
No Load
TA = 25°C
VCC = 5 V
No Load
0
0
0.2
0.4
0.6 0.8 1 1.2 1.4
VI − Input Voltage − V
0
1.6 1.8
0
2
0.2
0.4
0.6 0.8 1 1.2 1.4 1.6
VI − Input Voltage − V
Figure 2
ÏÏÏÏÏÏ
ÏÏÏÏÏÏ
ÏÏÏÏÏ
ÏÏÏÏÏ
ÏÏÏÏÏÏ
ÏÏÏÏÏÏ
0.6
VCC = 5 V
No Load
TA = 25°C
VOL
VOL − Low-Level Output Voltage − V
III I − Input Current − mA
LOW-LEVEL OUTPUT VOLTAGE
vs
OUTPUT CURRENT
ÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏÏ
ÏÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ
0.3
2
Figure 3
INPUT CURRENT
vs
INPUT VOLTAGE
0.4
1.8
0.2
0.1
0
VCC = 5 V
VI = 5 V
TA = 25°C
0.5
0.4
0.3
0.2
0.1
0
0
1
2
3
VI − Input Voltage − V
4
0
5
Figure 4
5
10
15
IO − Output Current − mA
20
Figure 5
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•
2−5
SLLS108B − D239, JANUARY 1977 − REVISED FEBRUARY 1993
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
30
IICC
CC − Supply Current − mA
25
All Seven Channels
No Load
TA = 25°C
20
All inputs
at 4 V
15
10
All inputs
at 0.7 V
5
0
0
1
2
3
4
VCC − Supply Voltage − V
5
Figure 6
2−6
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•
6
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