Fairchild Semiconductor DM74ALS37AN, DM74ALS37AMX, DM74ALS37AM Datasheet

© 2000 Fairchild Semiconductor Corporation DS006192 www.fairchildsemi.com

September 1986
Revised February 2000

DM74ALS37A Quadruple 2-Input NAND Buffer

DM74ALS37A
Quadruple 2-Input NAND Buffer

General Description

This device contains four independent gates, each of which
performs the logic NAND function.

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

■ Functionally and pin for pin compatible with LS TTL
counterpart

■ Improved AC performance over LS37

■ 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

DM74ALS37AM M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74ALS37AN 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

DM74ALS37A

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 83.0°C/W
M Package 114.0°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 −2.6 mA

I

OL

LOW Level Output Current 24 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 −1.5 V

V

OH

HIGH Level VCC = 4.5V

IOH = −2.6 mA 2.4 3.3 V

Output Voltage VIL = Max

IOH = −400 µAV

CC

− 2V

V

OL

LOW Level VCC = 4.5V IOL = 12 mA 0.25 0.4 V
Output Voltage VIH = 2V IOL = 24 mA 0.35 0.5 V

I

I

Input Current @ Maximum

VCC = 5.5V, VIH = 7V 0.1 mA

Input Voltage

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 −0.1 mA

I

O

Output Drive Current VCC = 5.5V VO = 2.25V −30 −112 mA

I

CCH

Supply Current with

VCC = 5.5V, VI = 0V 0.86 1.6 mA

Outputs HIGH

I

CCL

Supply Current with

VCC = 5.5V, VI = 4.5V 4.0 7.8 mA

Outputs LOW

Symbol Parameter Conditions Min Max Units

t

PLH

Propagation Delay Time VCC = 4.5V to 5.5V

28ns

LOW-to-HIGH Level Output RL = 500Ω

t

PHL

Propagation Delay Time CL = 50 pF

27ns

HIGH-to-LOW Level Output