C8051T627-B-GM Silicon Labs, C8051T627-B-GM Datasheet - Page 92

• 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

C8051T620/1/6/7 & C8051T320/1/2/3
equal to twice the SYSCLK (USBCLK > 2 x SYSCLK). When this bit is set, the USB FIFO space is mapped
into XRAM space at addresses 0x0400 to 0x07FF. The normal on-chip XRAM at the same addresses can-
not be accessed when the USBFAE bit is set to 1.
Important Note: The USB clock must be active when accessing FIFO space.
92
Figure 15.4. C8051T620/1 and C8051T320/1/2/3 USB FIFO Space and
0xFFFF
0x07C0
0x07BF
0x07FF
0x073F
0x063F
0x043F
0x03FF
0x0800
0x0740
0x0640
0x0440
0x0400
0x0000
XRAM Memory Map with USBFAE Set to 1
On-Chip XRAM
On-Chip XRAM
(128 bytes)
(256 bytes)
(512 bytes)
Endpoint0
Endpoint1
Endpoint2
Endpoint3
(64 bytes)
(64 bytes)
Free
Rev. 1.2
USB FIFO Space
(USB Clock Domain)