SA9109B
ELECTRICAL CHARACTERISTICS (continued)
Parameter
Symbol Min
Typ
Max Unit Condition
With R7 = 24kΩ
µA connected to VSS
Referred to VSS
Pin VREF
Ref. Current
Ref. Voltage
-IR
VR
45
1.1
50
55
1.3
V
Pins PB, SR[0], SR[1],
PGM
Input Voltage High
Input Voltage Low
Pullup Current
VIH
VIL
4
4
V
V
1
1
30
µA VIN = VSS
Pin PCLK
Input Voltage High
Input Voltage Low
Input Current High/
Low
VIH
VIL
V
V
±30
µA VIN=VSS..VDD
Pin VBA
IMAX
50
nA Power down
VMIN
1.1
5.5
V
mode
# Extended Operating Temperature Range available on request
Note 1: At rated conditions
PIN DESCRIPTION
Pin Designation
Type
Supply
Supply
Supply
Supply
Analog in
Analog in
Analog in
Input
Description
11
17
3
GND
VDD
VSS
Ground
Positive Supply Voltage sense
Negative Supply Voltage sense
Battery back-up. Negative Supply Voltage
Analog input for Voltage
2
VBA
IVN
8
10
9
IIN
IIP
Analog input for Current
38
37
18
19
20
21
OSC1
OSC2
R[0]
R[1]
R[2]
R[3]
Connections for crystal or ceramic resonator
(OSC1 = Input; OSC2 = Output)
Liquid crystal display (LCD) backplane drivers
Output
Output
Output
Output
Output
4/18
sames
SAMES [ SAMES ]
