CY7C66113C-LFXC Cypress Semiconductor Corp, CY7C66113C-LFXC Datasheet - Page 19

• Manufacturer Part Number: CY7C66113C-LFXC
• Description: IC MCU 8K USB HUB 4 PORT 56VQFN
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C66113C-LFXC

• Applications: USB Hub/Microcontroller
• Core Processor: M8
• Program Memory Type: OTP (8 kB)
• Controller Series: USB Hub
• Ram Size: 256 x 8
• Interface: I²C, USB, HAPI
• Number Of I /o: 31
• Voltage - Supply: 4 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-VQFN Exposed Pad, 56-HVQFN, 56-SQFN, 56-DHVQFN
• Controller Family/series: (8051) USB
• Ram Memory Size: 256Byte
• No. Of Timers: 1
• Digital Ic Case Style: QFN
• Operating Temperature Range: 0°C To +70°C
• No. Of Pins: 56
• Core Size: 8 Bit
• Embedded Interface Type: HAPI, I2C, USB
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: CY3649 - PROGRAMMER HI-LO USB M8428-1339 - KIT LOW SPEED PERSONALITY BOARD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

DAC Port
The CY7C66113CC features a programmable sink current 8-bit port, which is also known as DAC port. Each of these port I/O pins
have a programmable current sink. Writing a ‘1’ to a DAC I/O pin disables the output current sink (I
HIGH through an integrated 14 kΩ resistor. When a ‘0’ is written to a DAC I/O pin, the I
disabled. This causes the I
The amount of sink current for the DAC I/O pin is programmable
over 16 values based on the contents of the DAC Isink Register
(Figure
that are programmable from 3.2 mA to 16 mA (typical). DAC[7:2]
are low current outputs, programmable from 0.2 mA to 1.0 mA
(typical).
When the suspend bit in Processor Status and Control Register
(Figure
DAC Port Data
Bit [1..0]: High Current Output 3.2 mA to 16 mA typical
Document Number: 38-08024 Rev. *D
Bit #
Bit Name
Read/Write
Reset
1= I/O pin is an output pulled HGH through the 14 kΩ resistor.
0 = I/O pin is an input with an internal 14 kΩ pull up resistor.
19) for that output pin. DAC[1:0] are high current outputs
28) is set, the Isink DAC block of the DAC circuitry is
7
DAC[7]
R/W
1
Internal
Data Bus
sink
Interrupt
Enable
Interrupt
Polarity
6
DAC[6]
R/W
1
DAC to sink current to drive the output LOW.
Internal
Buffer
DAC Read
DAC Write
Data
Out
Latch
5
DAC[5]
R/W
1
Figure 17. Block Diagram of a DAC Pin
Suspend
(Bit 3 of Register 0xFF)
Figure 18. DAC Port Data
Isink
Register
4
DAC[4]
R/W
1
4 bits
Isink
DAC
disabled. Special care should be taken when the CY7C66113C
device is placed in the suspend. The DAC Port Data Register
(Figure
before setting the suspend bit. If any of the DAC bits are set to
‘0’ when the device is suspended, that DAC input floats. The
floating pin could result in excessive current consumption by the
device, unless an external load places the pin in a deterministic
state.
Bit [7..2]: Low Current Output 0.2 mA to 1 mA typical
to Interrupt
Controller
1= I/O pin is an output pulled HGH through the 14 kΩ resistor.
0 = I/O pin is an input with an internal 14 kΩ pull up resistor.
3
DAC[3]
R/W
1
V
Figure 17
18) should normally be loaded with all ‘1’s
CC
Q1
14 kΩ
CY7C66013C, CY7C66113C
shows a block diagram of the DAC port pin.
sink
2
DAC[2]
R/W
1
DAC is enabled and the pull up resistor is
I/O Pin
sink
DAC
1
DAC[1]
R/W
1
DAC) and drives the I/O pin
ADDRESS 0x30
0
DAC[0]
R/W
1
Page 19 of 59
(Figure
28)
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