CY8CTST200-48LTXIT Cypress Semiconductor Corp, CY8CTST200-48LTXIT Datasheet - Page 14

• Manufacturer Part Number: CY8CTST200-48LTXIT
• Description: IC MCU 32K FLASH 48-QFN
• Manufacturer: Cypress Semiconductor Corp
• Series: TrueTouch™r

Specifications of CY8CTST200-48LTXIT

• Applications: Touchscreen Controller
• Core Processor: M8C
• Program Memory Type: FLASH (32 kB)
• Controller Series: CY8CT
• Ram Size: 2K x 8
• Interface: I²C, SPI, UART/USART, USB
• Number Of I /o: 38
• Voltage - Supply: 1.8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-QFN
• Processor Series: CY8CTxx2xx
• Core: M8C
• Data Bus Width: 8 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Section A: Overview
Top Level Architecture
The PSoC block diagram on the next page illustrates the
top-level
CY8CTST200 devices. Each major grouping in the diagram
is covered in this manual in its own section: PSoC Core,
TrueTouch System, and the System Resources. Banding
these three main areas together is the communication net-
work of the system bus.
PSoC Core
The PSoC Core is a powerful engine that supports a rich
instruction set. It encompasses the SRAM for data storage,
an interrupt controller for easy program execution to new
addresses, sleep and watchdog timers, a regulated 3.0V
output option is provided for Port 1 I/Os, and multiple clock
sources that include the IMO (internal main oscillator) and
ILO (internal low speed oscillator) for precision, programma-
ble clocking.
The CPU core, called the M8C, is a powerful processor with
speeds up to 24 MHz. The M8C is a four MIPS 8-bit Har-
vard architecture microprocessor. Within the CPU core are
the SROM and Flash memory components that provide
flexible programming.
PSoC GPIOs provide connection to the CPU and the True-
Touch resources of the device. Each pin’s drive mode is
selectable from four options, allowing great flexibility in
external interfacing. Every pin also has the capability to gen-
erate a system interrupt on low level and change from last
read.
14
architecture
of
the
CY8CTMG20x
PSoC CY8CTMG20x and CY8CTST200 TRM, Document No. 001-53603 Rev. *C
and
TrueTouch™ System
The TrueTouch System is composed of comparators, refer-
ence drivers, I/O multiplexers, and digital logic to support
various capacitive sensing algorithms. Various reference
selections are provided. Digital logic is mainly comprised of
counters and timers.
System Resources
The System Resources provide additional PSoCcapability.
These system resources include:
■
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■
■
■
■
■
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Digital clocks to increase the flexibility of the PSoC pro-
grammable system-on-chip.
I2C functionality with "no bus stalling.”
Various system resets supported by the M8C.
Power-On-Reset (POR) circuit protection.
SPI master and slave functionality.
A programmable timer to provide periodic interrupts.
Clock boost network providing a stronger signal to
switches.
Full-speed USB interface for USB 2.0 communication
with 512 bytes of dedicated buffer memory and an inter-
nal 3V regulator.
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