AN2135SC Cypress Semiconductor Corp, AN2135SC Datasheet - Page 44

• Manufacturer Part Number: AN2135SC
• Description: IC MCU 8051 8K RAM 24MHZ 44QFP
• Manufacturer: Cypress Semiconductor Corp
• Series: EZ-USB®r

Specifications of AN2135SC

• Applications: USB Microcontroller
• Core Processor: 8051
• Program Memory Type: ROMless
• Controller Series: AN213x
• Ram Size: 8K x 8
• Interface: I²C, USB
• Number Of I /o: 8
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 44-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1308

EZ-USB TRM v1.9
2131Q
55
30
31
32
33
38
39
2121S
2122S
2131S
31
14
15
16
17
18
19
2125S
2126S
2135S
2136S
N/A
14
15
16
17
18
19
2122T 2126T
33
16
17
18
19
20
21
Table 1-3. EZ-USB Series 2100 Pinouts by Pin Function
N/A
16
17
18
19
20
21
PC0 or RXD0
PC2 or INT0#
PC3 or INT1#
PC1 or TXD0
PC4 or T0
PC5 or T1
T2OUT
PB7 or
Name
Chapter 1. Introducing EZ-USB
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Default
(PB7)
(PC0)
(PC1)
(PC2)
(PC3)
(PC4)
(PC5)
I
I
I
I
I
I
I
Multiplexed pin whose function is selected by the
T2OUT bit of the PORTBCFG register. If T2OUT=0,
the pin is the bi-directional I/O port bit PB7. If
T2OUT=1, the pin is the active-high T2OUT signal
from 8051 Timer2.
T2OUT is active (high) for one clock cycle when
Timer/Counter 2 overflows.
Multiplexed pin whose function is selected by the
RXD0 bit of the PORTCCFG register. If RXD0=0,
the pin is the bi-directional I/O port bit PC0. If
RXD0=1, the pin is the active-high RXD0 from 8051
UART0, which provides data to the UART in all
modes.
Multiplexed pin whose function is selected by the
TXD0 bit of the PORTCCFG register. If TXD0=0,
the pin is the bi-directional I/O port bit PC1. If
TXD0=1, the pin is the active-high TXD0 signal for
8051 UART0, which provides the output clock in
sync mode, and the output data in async mode.
Multiplexed pin whose function is selected by the
INT0 bit of the PORTCCFG register. If INT0=0, the
pin is the bi-directional I/O port bit PC2. If INT0=1,
the pin is the active-low 8051 INT0 interrupt input
signal, which is either edge triggered (IT0=1) or level
triggered (IT0=0).
Multiplexed pin whose function is selected by the
INT1 bit of the PORTCCFG register. If INT1=0, the
pin is the bi-directional I/O port bit PC3. If INT1=1,
the pin is the active-low 8051 INT1 interrupt input
signal, which is either edge triggered (IT1=1) or level
triggered (IT1=0).
Multiplexed pin whose function is selected by the T0
bit of the PORTCCFG register. If T0=0, the pin is
the bi-directional I/O port bit PC4. If T0=1, the pin is
the active-high T0 signal for 8051 Timer0, which pro-
vides the input to Timer0 when C/T0 is 1. When C/
T0 is 0, Timer0 does not use this bit.
Multiplexed pin whose function is selected by the T1
bit of the PORTCCFG register. If T1=0, the pin is
the bi-directional I/O port bit PC5. If T1=1, the pin is
the active-high T1 signal from 8051 Timer1, which
provides the input to Timer1 when C/T1 is 1. When
C/T0 is 0, Timer1 does not use this bit.
Description
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