MAX7304ETG+ Maxim Integrated, MAX7304ETG+ Datasheet - Page 23

• Manufacturer Part Number: MAX7304ETG+
• Description: Interface - I/O Expanders I2C 16Port LT GPIO and LED Driver
• Manufacturer: Maxim Integrated
• Series: MAX7304r

Specifications of MAX7304ETG+

• Rohs: yes
• Number Of I/os: 12
• Maximum Operating Frequency: 400 kHz
• Operating Supply Voltage: 1.62 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFN-24
• Operating Current: 25 mA
• Power Dissipation: 1229 mW
• Product Type: I/O Expanders

Table 17. GPIO Debounce Configuration Register (0x42)
Table 18. LED Constant-Current Setting Register (0x43)
Table 19. Common PWM Ratio Register (0x45)
Maxim Integrated
Power-up default setting
Debounce time is 9ms
Debounce time is 10ms
Debounce time is 11ms
Debounce time is 12ms
Debounce time is 37ms
Debounce time is 38ms
Debounce time is 39ms
Debounce time is 40ms
Power-up default setting
Common PWM ratio is 0/256
Common PWM ratio is 1/256
Common PWM ratio is 2/256
Common PWM ratio is 3/256
Common PWM ratio is 252/256
Common PWM ratio is 253/256
Common PWM ratio is 254/256
Common PWM ratio is 256/256
(100% duty cycle)
REGISTER BIT
REGISTER DESCRIPTION
REGISTER DESCRIPTION
D[7:6]
D[5:1]
D0
with High Level of Integrated ESD Protection
DESCRIPTION
current setting
Constant-
Reserved
Reserved
Level-Translating GPIO and LED Driver
D7
D7
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
VALUE
00000
11
0
1
RESERVED
D6
D6
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
Set always as 11
—
Constant current is 20mA
Constant current is 10mA
D5
D5
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
⋮
⋮
I
REGISTER DATA
REGISTER DATA
FUNCTION
COMMON PWM
2
D4
D4
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
C-Interfaced 16-Port,
D3
D3
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
DEBOUNCE TIME
D2
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
MAX7304
DEFAULT VALUE
D1
D1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
00000
11
0
D0
D0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
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