71M6521FE-IGT/F Maxim Integrated Products, 71M6521FE-IGT/F Datasheet - Page 68

• Manufacturer Part Number: 71M6521FE-IGT/F
• Description: IC ENERGY METER 32K FLASH 64LQFP
• Manufacturer: Maxim Integrated Products

Specifications of 71M6521FE-IGT/F

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

E_RST/SEG32.
I
Figure 35. Pull-up resistors of roughly 10kΩ to V3P3D (to ensure operation in BROWNOUT mode) should be used for
both SCL and SDA signals. The DIO_EEX register in I/O RAM must be set to 01 in order to convert the DIO pins
DIO4 and DIO5 to I
Page: 68 of 107
2
C EEPROMs or other I
LCD_NUM
Note: LCD segment numbers are given without CKTEST/SEG19, E_RXTX/SEG38, E_TCLK/SEG33, and
10
11
12
13
14
15
16
17
18
0
1
2
3
4
5
6
7
8
9
Table 65: LCD and DIO Pin Assignment by LCD_NUM for the LQFP-64 Package
SEG in Addition
to SEG0-SEG18
2
C pins SCL and SDA
30-31, 34-37
29-31, 34-37
28-31, 34-37
27-31, 34-37
26-31, 34-37
25-31, 34-37
24-31, 34-37
31, 34-37
36-37
35-37
34-37
34-37
34-37
2
37
C compatible devices should be connected to the DIO pins DIO4 and DIO5, as shown in
-
-
-
-
-
.
Figure 35: I
cluding SEG0-SEG18
Total Number of LCD
Connecting I
71M6521
71M6521
Segment Pins In-
DIO4
DIO4
DIO5
DIO5
19
19
19
19
19
20
21
22
23
23
23
24
25
26
27
28
29
30
31
2
C EEPROM Connection
10kΩ
10kΩ
2
C EEPROMs
DIO Pins in Addition
10kΩ
10kΩ
EEPROM
EEPROM
to DIO1-DIO2
SCL
SCL
4-11, 14-17
4-11, 14-17
4-11, 14-17
4-11, 14-17
4-11, 14-17
4-11, 14-16
4-11, 14-15
SDA
SDA
V3P3D
V3P3D
4-11, 14
None
4-11
4-11
4-11
4-10
4-9
4-8
4-7
4-6
4-5
4
71M6521DE/DH/FE Data Sheet
Total Number of DIO
Pins Including DIO1,
DIO2
14
14
14
14
14
13
12
11
10
10
10
9
8
7
6
5
4
3
2
Rev 2