C8051T322-GQR Silicon Labs, C8051T322-GQR Datasheet - Page 15

• Manufacturer Part Number: C8051T322-GQR
• Description: 8-bit Microcontrollers - MCU USB-OTP-16K-LQFP32
• Manufacturer: Silicon Labs

Specifications of C8051T322-GQR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

1. System Overview
C8051T620/621/320/321/322/323 devices are fully integrated mixed-signal System-on-a-Chip MCUs.
Highlighted features are listed below. Refer to Table 2.1 for specific product feature selection and part
ordering numbers.
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With
C8051T620/621/320/321/322/323 devices are truly stand-alone System-on-a-Chip solutions. User soft-
ware has complete control of all peripherals, and may individually shut down any or all peripherals for
power savings.
Code written for the C8051T620/621/320/321/322/323 family of processors will run on the C8051F34A
Mixed-signal ISP Flash microcontroller, providing a quick, cost-effective way to develop code without
requiring special emulator circuitry. The C8051T620/621/320/321/322/323 processors include Silicon Lab-
oratories’ 2-Wire C2 Debug and Programming interface, which allows non-intrusive (uses no on-chip
resources), full speed, in-circuit debugging using the production MCU installed in the final application. This
debug logic supports inspection of memory, viewing and modification of special function registers, setting
breakpoints, single stepping, run and halt commands. All analog and digital peripherals are fully functional
while debugging using C2. The two C2 interface pins can be shared with user functions, allowing in-system
debugging without occupying package pins.
Each device is specified for 1.8-to-5.25 V operation over the industrial temperature range (–40 to +85 °C).
For voltages above 3.6 V, the on-chip Voltage Regulator must be used. A minimum of 3.0 V is required for
USB communication. An additional internal LDO is used to supply the processor core voltage at 1.8 V. The
Port I/O and RST pins are tolerant of input signals up to 5 V. The C8051T620/1 are available in 32-pin QFN
packaging, the C8051T320/2 are available in 32-pin LQFP packaging, and the C8051T321/3 are available
in 28-pin QFN packaging. See Table 2.1 for ordering information. A block diagram is shown in Figure 1.1.
High-speed pipelined 8051-compatible microcontroller core (up to 48 MIPS)
In-system, full-speed, non-intrusive debug interface (on-chip)
C8051F34A ISP Flash device is available for quick in-system code development
Universal Serial Bus (USB) Function Controller with eight flexible endpoint pipes, integrated
transceiver, and 1 kB FIFO RAM
Supply Voltage Regulator
10-bit 500 ksps Single-ended ADC with analog multiplexer and integrated temperature sensor
Precision calibrated 48 MHz internal oscillator
Internal low-frequency oscillator for additional power savings
16 kB of on-chip byte-programmable EPROM — (512 bytes are reserved)
1280 bytes of on-chip RAM (256 + 1 kB)
SMBus/I2C, 2 UARTs, and Enhanced SPI serial interfaces implemented in hardware
Four general-purpose 16-bit timers
Programmable Counter/Timer Array (PCA) with five capture/compare modules and Watchdog Timer
function
On-chip Power-On Reset, V
On-chip Voltage Comparators (2)
Up to 25 Port I/O
on-chip
Power-On
Reset,
DD
Monitor, and Temperature Sensor
C8051T620/621/320/321/322/323
V
DD
monitor,
Rev. 1.1
Watchdog
Timer,
and
clock
oscillator,
the
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