
© 2000 Fairchild Semiconductor Corporation DS006337 www.fairchildsemi.com
October 1986
Revised March 2000
DM74AS1000A Quadruple 2-Input NAND Driver
DM74AS1000A
Quadruple 2-Input NAND Driver
General Description
These devices contain four independent 2-input drivers,
each of which performs the logic NAND function. The
DM74AS1000A is a driver version of the DM 74 AS0 0. Each
driver has increased output drive capability to allow the
driving of high capacitive loads.
Features
■ Switching specifications at 50 pF
■ Switching specifications guaranteed over full tempera-
ture and V
CC
range
■ Advanced oxide-isolated, ion-implanted Schottky TTL
process
■ Improved line receiving characteristics
Ordering Code:
Devices also availab le in Tape and Reel. Specify by appending th e s uffix let t er “X” to the ordering code.
Connection Diagram Function Table
Y = AB
H = HIGH Logic Level
L = LOW Logic Level
Order Number Package Number Package Description
DM74AS1000AM M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74AS1000AN N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Inputs Output
ABY
LLH
LHH
HLH
HHL

www.fairchildsemi.com 2
DM74AS1000A
Absolute Maximum Ratings(Note 1)
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the dev ice cannot be guaranteed. T he device sh ould not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommend ed O peratin g Cond itions” t able w ill defin e the co ndition s
for actual device operation.
Recommended Operating Conditions
Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.
Switching Characteristics
over recommended operating free air temperature range
Supply Voltage 7V
Input Voltage 7V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range −65°C to +150°C
Typical θ
JA
N Package 76.0°C/W
M Package 106.0°C/W
Symbol Parameter Min Nom Max Units
V
CC
Supply Voltage 4.5 5 5.5 V
V
IH
HIGH Level Input Voltage 2 V
V
IL
LOW Level Input Voltage 0.8 V
I
OH
HIGH Level Output Current −48 mA
I
OL
LOW Level Output Current 48 mA
T
A
Free Air Operating Temperature 0 70 °C
Symbol Parameter Conditions Min Typ Max Units
V
IK
Input Clamp Voltage VCC = 4.5V, II = −18 mA −1.2 V
V
OH
HIGH Level VCC = 4.5V IOH = −3 mA 2.4 3.2
Output Voltage VIL = Max IOH = Max 2 V
IOH = −2 mA, VCC = 4.5V to 5.5V VCC − 2
V
OL
LOW Level VCC = 4.5V, VIH = 2V
0.35 0.5 V
Output Voltage IOL = Max
I
I
Input Current @ Max Input Voltage VCC = 5.5V, VIH = 7V 0.1 mA
I
IH
HIGH Level Input Current VCC = 5.5V, VIH = 2.7V 20 µA
I
IL
LOW Level Input Current VCC = 5.5V, VIL = 0.4V −0.5 mA
I
O
Output Drive Current VCC = 5.5V, VO = 2.25V −50 −135 −200 mA
I
CCH
Supply Current Outputs HIGH, VCC = 5.5V, VI = 0V 2.3 3.5 mA
I
CCL
Supply Current Outputs LOW, VCC = 5.5V, VI = 4.5V 11.5 19 mA
Symbol Parameter Conditions Min Max Units
t
PLH
Propagation Delay Time VCC = 4.5V to 5.5V
14ns
LOW-to-HIGH Level Output RL = 500Ω
t
PHL
Propagation Delay Time CL = 50 pF
14ns
HIGH-to-LOW Level Output