CY8C3244LTI-123 Cypress Semiconductor Corp, CY8C3244LTI-123 Datasheet - Page 48

• Manufacturer Part Number: CY8C3244LTI-123
• Description: CY8C3244LTI-123
• Manufacturer: Cypress Semiconductor Corp
• Series: PSOC™ 3 CY8C32xxr

Specifications of CY8C3244LTI-123

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, LIN, SPI, UART/USART
• Peripherals: CapSense, DMA, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.71 V ~ 5.5 V
• Data Converters: A/D 2x12b, D/A 1x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Technology: CMOS
• Processing Unit: Microcontroller
• Operating Supply Voltage (min): 1.8V
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Operating Supply Voltage (max): 5.5V
• Package Type: QFN EP
• Screening Level: Industrial
• Pin Count: 48
• Mounting: Surface Mount
• Rad Hardened: No
• Processor Series: CY8C32
• Core: 8051
• Data Bus Width: 32 bit
• Data Ram Size: 2 KB
• Interface Type: I2C, SPI, UART, USB
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 29
• Number Of Timers: 4
• Operating Supply Voltage: 1.71 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Controller Family/series: (8051) PSOC 3
• No. Of I/o's: 25
• Eeprom Memory Size: 0.5KB
• Ram Memory Size: 2KB
• Cpu Speed: 50MHz
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 7-13. Digital System Interconnect
Interrupt and DMA routing is very flexible in the CY8C32
programmable architecture. In addition to the numerous fixed
function peripherals that can generate interrupt requests, any
data signal in the UDB array routing can also be used to generate
a request. A single peripheral may generate multiple
independent interrupt requests simplifying system and firmware
design.
(Interrupt/DMA Multiplexer).
Figure 7-14. Interrupt and DMA Processing in the IDMUX
7.4.1 I/O Port Routing
There are a total of 20 DSI routes to a typical 8-bit I/O port, 16
for data and four for drive strength control.
When an I/O pin is connected to the routing, there are two
primary connections available, an input and an output. In
Document Number: 001-56955 Rev. *J
Fixed Function DRQs
C ounters
Tim ers
G lobal
C locks
Fixed Function IRQs
Figure 7-14
I/O Port
Pins
I2C
UDB Array
D igital System R outing I/F
D igital System R outing I/F
shows the structure of the IDMUX
U D B A R R A Y
Interrupt and DMA Processing in IDMUX
EM IF
C ontroller
Interrupt
IRQs
DRQs
D el-Sig
Detect
Detect
Edge
Edge
C ontroller
D M A
D AC
0
1
0
2
1
2
3
IO Port
Pins
DMA termout (IRQs)
C om parators
Controller
Controller
Interrupt
DMA
C locks
G lobal
conjunction with drive strength control, this can implement a
bidirectional I/O pin. A data output signal has the option to be
single synchronized (pipelined) and a data input signal has the
option to be double synchronized. The synchronization clock is
the system clock (see
are synchronized as this is required if the CPU interacts with the
signal or any signal derived from it. Asynchronous inputs have
rare uses. An example of this is a feed through of combinational
PLD logic from input pins to output pins.
Figure 7-15. I/O Pin Synchronization Routing
Figure 7-16. I/O Pin Output Connectivity
There are four more DSI connections to a given I/O port to
implement dynamic output enable control of pins. This
connectivity gives a range of options, from fully ganged 8-bits
controlled by one signal, to up to four individually controlled pins.
The output enable signal is useful for creating tri-state
bidirectional pins and buses.
Figure 7-17. I/O Pin Output Enable Connectivity
DO
4 IO Control Signal Connections from
UDB Array Digital System Interface
DI
PIN 0
DO
PIN 0
8 IO Data Output Connections from the
OE
UDB Array Digital System Interface
PIN1
DO
PIN1
OE
PIN2
DO
PIN2
OE
PSoC
PIN3
DO
PIN3
Figure
OE
Port i
Port i
PIN4
DO
PIN4
OE
6-1). Normally all inputs from pins
®
3: CY8C32 Family
PIN5
DO
PIN5
OE
PIN6
DO
PIN6
OE
Data Sheet
PIN7
DO
PIN7
OE
Page 48 of 119
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