MAX7304 Maxim, MAX7304 Datasheet - Page 21

• Manufacturer Part Number: MAX7304
• Description: The MAX7304 consists of 16 port GPIOs, with 12 push-pull GPIOs and four open-drain GPIOs configurable as PWM-controlled LED drivers
• Manufacturer: Maxim

Table 14. GPIO Values 2 Register (0x3B)
*Open-drain output, pullup resistor required.
Table 15. GPIO Level-Shifter Enable (0x3C)
REGISTER BIT
REGISTER BIT
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
with High Level of Integrated ESD Protection
 Maxim Integrated Products 21
PORT7/PORT15
PORT6/PORT14
PORT5/PORT13
PORT4/PORT12
PORT3/PORT11
PORT2/PORT10
DESCRIPTION
DESCRIPTION
PORT15
PORT14
PORT13
PORT12
PORT11
PORT10
PORT9
PORT8
Level-Translating GPIO and LED Driver
VALUE
VALUE
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Clear PORT15 low
Set PORT15 high*
Clear PORT14 low
Set PORT14 high*
Clear PORT13 low
Set PORT13 high*
Clear PORT12 low
Set PORT12 high*
Clear PORT11 low
Set PORT11 high
Clear PORT10 low
Set PORT10 high
Clear PORT9 low
Set PORT9 high
Clear PORT8 low
Set PORT8 high
Level shifting disabled
Level shift between PORT7 and PORT15 enabled;
direction controlled by GPIO direction 2 register (0x35)
Level shifting disabled
Level shift between PORT6 and PORT14 enabled;
direction controlled by GPIO direction 2 register (0x35)
Level shifting disabled
Level shift between PORT5 and PORT13 enabled;
direction controlled by GPIO direction 2 register (0x35)
Level shifting disabled
Level shift between PORT4 and PORT12 enabled;
direction controlled by GPIO direction 2 register (0x35)
Level shifting disabled
Level shift between PORT3 and PORT11 enabled;
direction controlled by GPIO direction 2 register (0x35)
Level shifting disabled
Level shift between PORT2 and PORT10 enabled;
direction controlled by GPIO direction 2 register (0x35)
I
FUNCTION
FUNCTION
2
C-Interfaced 16-Port,
MAX7304
DEFAULT VALUE
DEFAULT VALUE
1
1
1
1
1
1
1
1
0
0
0
0
0
0