SA9109B Ver la hoja de datos (PDF) - South African Micro Electronic Systems
Número de pieza
componentes Descripción
Fabricante
SA9109B
South African Micro Electronic Systems
SA9109B Datasheet PDF : 18 Pages
| |||
SA9109B
PIN DESCRIPTION (continued)
Pin Designation Type Description
23
S[0]
Output Liquid crystal display (LCD) segment drivers
24
S[1]
Output
25
S[2]
Output
26
S[3]
Output
27
S[4]
Output
28
S[5]
Output
29
S[6]
Output
30
S[7]
Output
31
S[8]
Output
32
S[9]
Output
33
S[10]
Output
34
S[11]
Output
35
S[12]
Output
36
S[13]
Output
22
COFF
Output Connection for all unused LCD segments, to ensure
off status
7
CON
Analog Connections for outer loop capacitor of A/D
6
COP
Analog converter (Current)
5
CIN
Analog Connections for inner loop capacitor of A/D
4
CIP
Analog converter (Current)
16
CPIP
Analog Connections for inner loop capacitor of A/D
15
CPIN
Analog converter (Voltage)
14
CPOP
Analog Connections for outer loop capacitor of A/D
13
CPON
Analog converter (Voltage)
12
VREF
Analog Connection for reference current setting resistor
39
SDO
Open drain Pulse rate output. Serial data output when PB is low
44
SR[0]
Input Control for tariff register selection (on-chip pull-up)
1
SR[1]
Input Control for tariff register selection (on-chip pull-up)
43
PB
Input Push Button: Display select/start serial data
transmission on SDO (on-chip pull-up)
42
PGM
Input Programming Mode. It is recommended that pin PGM be
connected
to
V
DD
via
a
470Ω
resistor
to
guard
against
transients or noise
41
PDTA
Input Programming Data (on-chip pull-down)
40
PCLK
Input Programming Clock
sames
5/18
Share Link: