SPT7864 Просмотр технического описания (PDF) - Fairchild Semiconductor
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SPT7864 Datasheet PDF : 8 Pages
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PIN ASSIGNMENTS
GND 1
VDD 2
REFL 3
REFH 4
EXT/INT 5
VCM 6
GND 7
VDD 8
VIN 9
VIN 10
Sleep 11
CLK 12
CLK 13
OR 14
SPT7864
28L SSOP
PIN FUNCTIONS
28 D0
27 D1
26 D2
25 D3
24 D4
23 OGND
22 OVDD
21 OGND
20 OVDD
19 D5
18 D6
17 D7
16 D8
15 D9 (MSB)
Name Function
GND Analog ground
VDD
Analog +5 V
OGND Output ground
OVDD Supply voltage for digital outputs 3 V/5 V
REFL
Reference pin low, input for external
reference, bypass with capacitor (10 µF)
when internal reference is selected.
REFH
Reference pin high, input for external
reference, bypass with capacitor (10 µF)
when internal voltage is selected.
VCM
2.5 V common mode voltage reference output
VIN
Non-inverted analog input
VIN
Inverted analog input
CLK
Clock input pin
CLK
Complement of clock input pin, internally
biased to 1.5 V; if single-ended clock is used,
bypass to GND with 10 µF
D0–D9 Digital outputs; D0 = LSB; 3 V/5 V compatible
OR
Out-of-range bit; 3 V/5 V compatible
EXT/INT EXT/INT = 1, external reference used; internal
reference powered down
EXT/INT = 0, internal reference used;
internally pulled down
Sleep
Sleep = 1, normal operation; internally pulled
up
Sleep = 0, powered-down mode
ORDERING INFORMATION
PART NUMBER
SPT7864SCR
TEMPERATURE RANGE
0 to +70 °C
PACKAGE TYPE
28L SSOP
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO
IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR
USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR
THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS
WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems which, (a) are
intended for surgical implant into the body, or (b) support or sustain life,
and whose failure to perform, when properly used in accordance with
instructions for use provided in the labeling, can be reasonably
expected to result in a significant injury to the user.
2. A critical component is any component of a life support device or
system whose failure to perform can be reasonably expected to cause
the failure of the life support device or system, or to affect its safety or
effectiveness.
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© Copyright 2002 Fairchild Semiconductor Corporation
SPT7864
8
11/20/01
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