MAX6957AAX+ Maxim Integrated Products, MAX6957AAX+ Datasheet - Page 14

• Manufacturer Part Number: MAX6957AAX+
• Description: IC DRVR DSPL LED 36-SSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX6957AAX+

• Display Type: LED
• Configuration: 7, 16, 20 Segment
• Interface: 4-Wire Serial
• Current - Supply: 180µA
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 36-SSOP
• Number Of Digits: 7
• Number Of Segments: 28
• Low Level Output Current: 18000 uA
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Supply Current: 230 uA
• Maximum Power Dissipation: 941 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• No. Of Segments: 28
• Supply Voltage Range: 2.5V To 5.5V
• Driver Case Style: SSOP
• No. Of Pins: 36
• Operating Temperature Range: -40°C To +125°C
• Device Type: LED
• Termination Type: SMD
• Rohs Compliant: Yes
• Filter Terminals: SMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
28-Port LED Display Driver and I/O Expander
14
Figure 6. Maskable GPIO Ports P24 Through P31
______________________________________________________________________________________
P29
P26
P25
P30
P28
P27
P24
P31
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
GPIO/PORT OUTPUT LATCH
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
CONDITIONING
GPIO INPUT
GPIO INPUT
GPIO INPUT
GPIO INPUT
GPIO INPUT
GPIO INPUT
GPIO INPUT
CONFIGURATION REGISTER M BIT = 1
CONDITIONING
GPIO INPUT
OUTPUT LATCH
OUTPUT LATCH
GPIO/PORT
INT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO/PORT OUT
GPIO IN
GPIO IN
GPIO IN
GPIO IN
GPIO IN
GPIO IN
GPIO IN
R
S
CLOCK PULSE WHEN WRITING CONFIGURATION REGISTER WITH M BIT SET
D
D
D
D
D
D
D
Q
Q
Q
Q
Q
Q
Q
MASK REGISTER BIT 6
MASK REGISTER BIT 5
MASK REGISTER BIT 4
MASK REGISTER BIT 3
MASK REGISTER BIT 2
MASK REGISTER BIT 1
GPIO/PORT OUT
CLOCK PULSE AFTER EACH READ ACCESS TO MASK REGISTER
GPIO IN
MASK REGISTER LSB
OR