Fairchild NC7S08 service manual
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NC7S08
NC7S08 TinyLogic
October 1995
Revised June 2000
TinyLogic
General Description
The NC7S08 is a sing le 2-Input high perfor mance CMOS
AND Gate. Advanced Silicon Gate CMOS fabrication
assures high speed and low po wer cir cuit oper atio n over a
broad V
both inputs and outpu t with respect to the V
rails. Three stages of gain between inputs and outputs
assures high noise immunity and reduced sensitivity to
input edge rate.
range. ESD protecti on diodes inhe rently guard
CC
HS 2-Input AND Gate
Features
■ Space saving SOT23 or SC70 5-lead package
■ High Speed; t
■ Low Quiescent Power; I
and GND
CC
■ Balanced Output Drive; 2 mA I
■ Broad VCC Operating Range; 2V–6V
■ Balanced Propagation Dela ys
■ Specified for 3V operation
3.5 ns typ
PD
CC
< 1 µA
OL
, −2 mA I
OH
Ordering Code:
Order Number
NC7S08M5 MA05B 7S08 5-Lead SOT23, JEDEC MO-178, 1.6mm 250 Units on Tape and Reel
NC7S08M5X MA05B 7S08 5-Lead SOT23, JEDEC MO-178, 1.6mm 3k Units on Tape and Reel
NC7S08P5 MAA05A S08 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide 250 Units on Tape and Reel
NC7S08P5X MAA05A S08 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide 3k Units on Tape and Reel
Logic Symbol
Package Product Code
Number Top Mark
IEEE/IEC
Package Descript ion Supplied As
Connection Diagram
HS 2-Input AND Gate
(Top View)
Pin Descriptions Function Table
Pin Names Description
A, B Inputs
Y Output
H = HIGH Logic Level
L = LOW Logic Level
TinyLogic is a trademark of Fairchild Semiconductor Co rporation.
© 2000 Fairchild Semiconductor Corporation DS012141 www.fairchildsemi.com
ABY
LLL
LHL
HLL
HHH
Y = AB
Inputs Output
Absolute Maximum Ratings(Note 1) Recommended Operating
Supply Voltage (VCC) −0.5V to +7.0V
NC7S08
DC Input Diode Current (I
@ V
≤ −0.5V −20 mA
IN
≥ VCC +0.5V +20 mA
@ V
IN
DC Input Voltage (V
DC Output Diode Current (I
< −0.5V −20 mA
@ V
OUT
@ V
> VCC +0.5V +20 mA
OUT
DC Output Voltage (V
)
IK
) −0.5V to VCC + 0.5V
IN
)
OK
) −0.5V to VCC + 0.5V
OUT
DC Output Source
or Sink Current (I
DC V
or Ground Current
CC
per Output Pin (I
Storage Temperature (T
Junction Temperature (T
Lead Temper ature (T
) ±12.5 mA
OUT
or I
CC
) ±25 mA
GND
) −65°C to +150°C
STG
) 150°C
J
);
L
(Soldering, 10 seco nds) 260
Power Dissipation (P
) @+85°C
D
SOT23-5 200 mW
SC70-5 150 mW
Conditions
Supply Voltage (V
Input Voltage (V
Output Voltage (V
Operating Temperature (TA) −40°C to +85°C
Input Rise and Fall Time (t
V
@ 2.0V 0 to 1000 ns
CC
@ 3.0V 0 to 750 ns
V
CC
V
@ 4.5V 0 to 500 ns
CC
V
@ 6.0V 0 to 400 ns
CC
Thermal Resistance (
SOT23-5 300
SC70-5 425
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power
supply, temperature, and ou tput/inp ut loadi ng varia bles. Fairchild does no t
°C
recommend operat ion of circuits outside databook specific at ions.
Note 2: Unused inputs must be held HIGH or LOW. They may not float.
(Note 2)
) 2.0V to 6.0V
CC
) 0V to V
IN
) 0V to V
OUT
, tf)
r
θ
)
JA
DC Electrical Characteristics
V
Symbol Parameter
HIGH Level Input Voltage 2.0 1.50 1.50
V
IH
V
LOW Level Input Voltage 2.0 0.50 0.50
IL
V
HIGH Level Output Voltage 2.0 1.90 2.0 1.90
OH
V
LOW Level Output Voltage 2.0 0.0 0.10 0.10
OL
I
Input Leakage Current 6.0 ±0.1 ±1.0 µAVIN = VCC, GND
IN
I
Quiescent Supply Current 6.0 1.0 10.0 µAVIN = VCC, GND
CC
CC
(V) Min Typ Max Min Max
3.0-6.0 0.7 V
3.0-6.0 0.3 V
3.0 2.90 3.0 2.90 I
4.5 4.40 4.5 4.40 V
6.0 5.90 6.0 5.90
3.0 2.68 2.85 2.63 IOH = −1.3 mA
4.5 4.18 4.35 4.13 IOH = −2 mA
6.0 5.68 5.85 5.63 IOH = −2.6 mA
3.0 0.0 0.10 0.10 IOL = 20 µA
4.5 0.0 0.10 0.10 VIN = V
6.0 0.0 0.10 0.10
3.0 0.1 0.26 0.33 IOH = 1.3 mA
4.5 0.1 0.26 0.33 IOL = 2 mA
6.0 0.1 0.26 0.33 IOL = 2.6 mA
TA = +25°CT
CC
A
0.7 V
CC
= −40°C to +85°C
CC
0.3 V
CC
°C/W
°C/W
Units Conditions
V
V
= −20 µA
OH
V
= V
IN
IH
V
= V
IN
IH
V
V
V
IL
VIN = VIH or V
CC
CC
IL
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AC Electrical Characteristics
V
Symbol Parameter
t
, Propagation Delay 5.0 3.5 15 ns CL = 15 pF
PLH
t
PHL
CC
(V) Min Typ Max Min Max
2.0 20 100 125
3.0 11 27 35
4.5 8 20 25
6.0 7 17 21
t
, Output Transition Time 5.0 3.0 10 ns CL = 15 pF
TLH
t
THL
2.0 25 125 155
3.0 16 35 45
4.5 11 25 31
6.0 9 21 26
C
Input Capacitance Open 2 10 10 pF
IN
C
Power Dissipation Capacitance 5.0 6 pF (Note 3) Figure 2
PD
Note 3: CPD is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (I
loading and operating at 50% duty cycle. (See Figure 2.) C
= (CPD)(VCC)(fIN) + (ICCstatic).
I
CCD
TA = +25°CT
is related to I
PD
dynamic operating current by the express ion:
CCD
= −40°C to +85°C
A
Units Conditions Fig. No.
ns CL = 50 pF
ns CL = 50 pF
AC Loading and Waveforms
) at no output
CCD
Figures
1, 3
Figures
1, 3
NC7S08
CL includes load and s tr ay c apacitance
Input PR R = 1.0 MHz; t
= 500 ns
W
FIGURE 1. AC Test Circuit
Input = AC Wavefor m;
PRR = variable; Duty Cycle = 50%
FIGURE 2. I
CCD
FIGURE 3. AC Waveforms
Test Circuit
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