C8051T627-B-GM Silicon Labs, C8051T627-B-GM Datasheet - Page 161

• Manufacturer Part Number: C8051T627-B-GM
• Description: 8-bit Microcontrollers - MCU UBS, 64K OTP MCU
• Manufacturer: Silicon Labs

Specifications of C8051T627-B-GM

• Rohs: yes
• Core: 8051
• Processor Series: C8051T627
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 48 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 3328 B
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 5.25 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: QFN-32
• Mounting Style: SMD/SMT
• Program Memory Type: EPROM

23.1. Endpoint Addressing
A total of eight endpoint pipes are available. The control endpoint (Endpoint0) always functions as a bi-
directional IN/OUT endpoint. The other endpoints are implemented as three pairs of IN/OUT endpoint
pipes:
23.2. USB Transceiver
The USB Transceiver is configured via the USB0XCN register shown in SFR Definition 23.1. This configu-
ration includes Transceiver enable/disable, pull-up resistor enable/disable, and device speed selection
(Full or Low Speed). When bit SPEED = 1, USB0 operates as a Full Speed USB function, and the on-chip
pull-up resistor (if enabled) appears on the D+ pin. When bit SPEED = 0, USB0 operates as a Low Speed
USB function, and the on-chip pull-up resistor (if enabled) appears on the D- pin. Bits4-0 of register
USB0XCN can be used for Transceiver testing as described in SFR Definition 23.1. The pull-up resistor is
enabled only when VBUS is present (see Section “11.1.2. VBUS Detection” on page 61 for details on
VBUS detection).
Important Note: The USB clock should be active before the Transceiver is enabled.
Table 23.1. Endpoint Addressing Scheme
Endpoint3
Endpoint0
Endpoint1
Endpoint2
Endpoint
Endpoint3 IN
Endpoint3 OUT
C8051T620/1/6/7 & C8051T320/1/2/3
Associated Pipes
Endpoint0 OUT
Endpoint1 OUT
Endpoint2 OUT
Endpoint0 IN
Endpoint1 IN
Endpoint2 IN
Rev. 1.2
0x83
0x03
USB Protocol Address
0x00
0x00
0x81
0x01
0x82
0x02
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