NJU9214FG1 New Japan Radio Co., Ltd., NJU9214FG1 Datasheet - Page 3

• Manufacturer Part Number: NJU9214FG1
• Description: 4 3/4 DIGIT Single Chip Digital Multimeter LSI
• Manufacturer: New Japan Radio Co., Ltd.

SGND2
SGND1
VREF2
VREF1
PIN CONFIGURATION
TERMINAL DESCRIPTION
VREF3
AGND
13 to 16
17 to 20
21 to 25
INT1
INT2
IVSH
IVSL
ADP
OVX
OVH
BUF
CL2
CH2
5 to 8
VR5
VR4
VR3
VR2
CL1
VR7
VR6
CH1
No.
V1
10
12
11
1
2
3
4
9
RD1 to RD4
RC0 to RC3
FC1 to FC4
100
KI1 to KI5
90
SYMBOL
80
85
95
ACOUT
RMSIN
75
VDDA
VDDD
1
RMS
KMS
TXS
TRX
5
70
Out
Out
I/O
I/O
In
In
In
In
In
In
In
–
–
Attenuator output terminal ( used at ACA, ACmA, FRQ, rpm )
RS232C Output-Rate Select Terminal L ; 9600bps H ; 2400bps
RS232C Function Select Terminal
NJU9214FG1
Analog VDD ( VDDA = 5.0 ± 0.25V )
RMS-Voltage Input Terminal
Digital VDD ( VDDD = 5.0 ± 0.25V )
Relay Driving Terminal
Key Mode Select Terminal
Range Control Mode Select Terminal
Range Select Terminal with Input Pull-up Resistance ( 300k
Function Select Terminal with Input Pull-up Resistance ( 300k
Optional Function Control Terminal with Input Pull-up Resistance
( 300k
10
65
)
15
60
FUNCTION
20
55
25
50
40
45
35
30
NJU9214
T3
T2
T1
RST
PON
SEG16
SEG15
SEG14
SEG13
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
COM4
COM3
CMO2
COM1
SEG12
SEG11
SEG10
)
)