Fairchild NC7S32 service manual
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NC7S32
NC7S32 TinyLogic
October 1995
Revised June 2000
TinyLogic
General Description
The NC7S32 is a sing le 2-Input high perfor mance CMOS
OR 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 OR 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
NC7S32M5 MA05B 7S32 5-Lead SOT23, JEDEC MO-178, 1.6mm 250 Units on Tape and Reel
NC7S32M5X MA05B 7S32 5-Lead SOT23, JEDEC MO-178, 1.6mm 3k Units on Tape and Reel
NC7S32P5 MAA05A S32 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide 250 Units on Tape and Reel
NC7S32P5X MAA05A S32 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 OR 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 DS012137 www.fairchildsemi.com
ABY
LLL
LHH
HLH
HHH
Y = A + B
Inputs Output
Absolute Maximum Ratings(Note 1) Recommended Operating
Supply Voltage (VCC) −0.5V to +7.0V
NC7S32
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
CC
Output Pin (I
Storage Temperature (T
Junction Temperature (T
Lead Temperature (T
) ±12.5 mA
OUT
or Ground Current per
or I
CC
) ±25 mA
GND
) −65°C to +150°C
STG
)150°C
J
)
L
(Soldering, 10 seconds) 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 t he databook specific ations.
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
Symbol Parameter
V
HIGH Level Input Voltage 2.0 1.50 1.50
IH
V
LOW Level Input Voltage 2.0 0.50 0.50
IL
V
V
I
I
HIGH Level Output Voltage 2.0 1.90 2.0 1.90
OH
LOW Level Output Voltage 2.0 0.0 0.10 0.10
OL
Input Leakage Current 6.0 ±0.1 ±1.0 µAVIN = VCC, GND
IN
Quiescent Supply Current 6.0 1.0 10.0 µAVIN = VCC, GND
CC
V
CC
(V) MinTypMaxMinMax
3.0–6.0 0.7V
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 IOL = 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
0.7V
CC
=−40°Cto+85°C
CC
0.3 V
Units Condition
V
V
CC
V
V
V
V
= −20 mA
OH
= V
IN
V
= V
IN
VIN = V
CC
CC
°C/W
°C/W
IH
IH
IL
IL
www.fairchildsemi.com 2
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 12 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 expre s si on:
CCD
= −40°C to +85°C
A
Units Conditions Fig. No.
ns CL = 50 pF
ns CL = 50 pF
AC Loading and Waveforms
CL includes load and s tr ay c apacitance
Input PR R = 1.0 MHz, t
= 500 ns
w
FIGURE 1. AC Test Circuit
) at no output
CCD
Figures
1, 3
Figures
1, 3
NC7S32
Input = AC Waveforms;
PRR = variable; Duty Cycle = 50%
FIGURE 2. I
Test Circuit
CCD
FIGURE 3. AC Waveforms
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