C8051F961-A-GM Silicon Labs, C8051F961-A-GM Datasheet - Page 135
C8051F961-A-GM
Manufacturer Part Number
C8051F961-A-GM
Description
8-bit Microcontrollers - MCU 128KB, DC-DC, LCD AES, QFN40
Manufacturer
Silicon Labs
Datasheet
1.C8051F960-A-GQ.pdf
(492 pages)
Specifications of C8051F961-A-GM
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
128 KB
Data Ram Size
8448 B
On-chip Adc
Yes
Operating Supply Voltage
2.5 V to 3.3 V
Operating Temperature Range
- 40 C to + 85 C
Package / Case
QFN-40
Mounting Style
SMD/SMT
Number Of Programmable I/os
34
Number Of Timers
4
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10.5. Memory Mode Selection
The external data memory space can be configured in one of four modes, shown in Figure 10.3, based on
the EMIF Mode bits in the EMI0CF register (SFR Definition 10.2). These modes are summarized below.
More information about the different modes can be found in Section “10.6. Timing” on page 137.
EMI0CF[3:2] = 00
On-Chip XRAM
On-Chip XRAM
On-Chip XRAM
On-Chip XRAM
On-Chip XRAM
On-Chip XRAM
E
M
I
F
A[15:0]
D[7:0]
WR
RD
0xFFFF
0x0000
Figure 10.2. Non-multiplexed Configuration Example
EMI0CF[3:2] = 01
(No Bank Select)
On-Chip XRAM
Off-Chip
Memory
Figure 10.3. EMIF Operating Modes
ADDRESS BUS
DATA BUS
0xFFFF
0x0000
(Optional)
Rev. 0.5
EMI0CF[3:2] = 10
On-Chip XRAM
(Bank Select)
Off-Chip
Memory
V
DD
8
0xFFFF
0x0000
EMI0CF[3:2] = 11
A[15:0]
I/O[7:0]
CE
WE
OE
C8051F96x
Off-Chip
Memory
64 K X 8
SRAM
0xFFFF
0x0000
135
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