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PDF 100352QC Data sheet ( Hoja de datos )
| Número de pieza | 100352QC | |
| Descripción | Low Power 8-Bit Buffer with Cut-Off Drivers | |
| Fabricantes | Fairchild Semiconductor | |
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October 1989
Revised August 2000
100352
Low Power 8-Bit Buffer with Cut-Off Drivers
General Description
The 100352 contains an 8-bit buffer, individual inputs (Dn),
outputs (Qn), and a data output enable pin (OEN). A Q out-
put follows its D input when the OEN pin is LOW. A HIGH
on OEN holds the outputs in a cut-off state. The cut-off
state is designed to be more negative than a normal ECL
LOW level. This allows the output emitter-followers to turn
off when the termination supply is −2.0V, presenting a high
impedance to the data bus. This high impedance reduces
termination power and prevents loss of low state noise
margin when several loads share the bus.
The 100352 outputs are designed to drive a doubly termi-
nated 50Ω transmission line (25Ω load impedance). All
inputs have 50 kΩ pull-down resistors.
Features
s Cut-off drivers
s Drives 25Ω load
s Low power operation
s 2000V ESD protection
s Voltage compensated operating range = −4.2V to −5.7V
s Available to industrial grade temperature range
Ordering Code:
Order Number Package Number
Package Description
100352PC
N24E
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.400 Wide
100352QC
V28A
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square
100352QI
V28A
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square
Industrial Temperature Range (−40°C to +85°C)
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagrams
24-Pin DIP
Pin Descriptions
Pin Names
Description
D0–D7
OEN
Data Inputs
Output Enable Input
Q0–Q7
NC
Data Outputs
No Connect
© 2000 Fairchild Semiconductor Corporation DS010248
28-Pin PLCC
www.fairchildsemi.com
1 page  
Industrial Version
PLCC DC Electrical Characteristics (Note 7)
VEE = −4.2V to −5.7V, VCC = VCCA = GND, TC = −40°C to +85°C
Symbol
Parameter
TC = −40°C
Min Max
TC = 0°C to +85°C
Min Max
Units
Conditions
VOH
VOL
VOHC
VOLC
Output HIGH Voltage
Output LOW Voltage
Output HIGH Voltage
Output LOW Voltage
−1085
−1830
−1095
−870
−1575
−1565
−1025
−1830
−1035
−870
−1620
−1610
mV VIN = VIH(Max)
or VIL(Min)
mV VIN = VIH(Min)
or VIL(Max)
Loading with
25Ω to −2.0V
Loading with
25Ω to −2.0V
VOLZ
VIH
Cut-Off LOW Voltage
Input HIGH Voltage
−1950
−1950
−1170
−870
−1165
−870
mV VIN = VIH(Min)
OEN = HIGH
or VIL (Max)
mV Guaranteed HIGH Signal
for All Inputs
VIL Input LOW Voltage
−1830 −1480 −1830 −1475
mV Guaranteed LOW Signal
for All Inputs
IIL Input LOW Current
0.50
0.50
µA VIN = VIL(Min)
IIH Input HIGH Current
340 240 µA VIN = VIH(Max)
IEE Power Supply Current
Inputs OPEN
−138 −60 −138 −70
mA VEE = −4.2V to −4.8V
−143 −60 −143 −70
VEE = −4.2V to −5.7V
Note 7: The specified limits represent the “worst case” value for the parameter. Since these values normally occur at the temperature extremes, additional
noise immunity and guardbanding can be achieved by decreasing the allowable system operating ranges. Conditions for testing shown in the tables are cho-
sen to guarantee operation under “worst case” conditions.
PLCC AC Electrical Characteristics
VEE = 4.2V to −5.7V, VCC = VCCA = GND
Symbol
Parameter
TC = −40°C
Min Max
TC = +25°C
Min Max
TC = +85°C
Min Max
Units
tPLH Propagation Delay
tPHL Dn to Output
0.60
1.80
0.70
1.80
0.70
2.00
ns
tPZH Propagation Delay
tPHZ OEN to Output
1.40
1.00
4.40
2.50
1.60
1.00
4.00
2.50
1.60
1.00
4.00
2.50
ns
tTLH Transition Time
tTHL 20% to 80%, 80% to 20%
0.40
2.50
0.45
1.90
0.45
1.90
ns
Note 8: The propagation delay specified is for single output switching. Delays may vary up to 300 ps with multiple outputs switching.
Conditions
Figures 1, 2
(Note 8)
Figures 1, 2
(Note 8)
Figures 1, 2
5 www.fairchildsemi.com
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| PDF Descargar | [ Datasheet 100352QC.PDF ] | |
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