参数资料
型号: RTC-4701JEB
厂商: EPSON TOYOCOM CORP
元件分类: 时钟/数据恢复及定时提取
英文描述: REAL TIME CLOCK, PDSO20
封装: VSOJ-20
文件页数: 4/22页
文件大小: 203K
代理商: RTC-4701JEB
C165
Data Sheet
8
V2.0, 2000-12
NC
40
42
This pin is not connected in the C165.
No connection to the PCB is required.
PORT0
P0L.0-7
P0H.0-7
41-48
51-58
43-50
53-60
IO
PORT0 consists of the two 8-bit bidirectional I/O
ports P0L and P0H. It is bit-wise programmable for
input or output via direction bits. For a pin configured
as input, the output driver is put into high-impedance
state. In case of an external bus configuration,
PORT0 serves as the address (A) and address/data
(AD) bus in multiplexed bus modes and as the data
(D) bus in demultiplexed bus modes.
Demultiplexed bus modes:
Data Path Width:
8-bit
16-bit
P0L.0 – P0L.7:
D0 – D7
P0H.0 – P0H.7:
I/O
D8 – D15
Multiplexed bus modes:
Data Path Width:
8-bit
16-bit
P0L.0 – P0L.7:
AD0 – AD7
P0H.0 – P0H.7:
A8 – A15
AD8 – AD15
PORT1
P1L.0-7
P1H.0-7
59-66
67,68,
71-76
61-68
69-70,
73-78
IO
PORT1 consists of the two 8-bit bidirectional I/O
ports P1L and P1H. It is bit-wise programmable for
input or output via direction bits. For a pin configured
as input, the output driver is put into high-impedance
state. PORT1 is used as the 16-bit address bus (A)
in demultiplexed bus modes and also after switching
from a demultiplexed bus mode to a multiplexed bus
mode.
Table 2
Pin Definitions and Functions (cont’d)
Symbol Pin Nr
TQFP
Pin Nr
MQFP
Input
Outp.
Function
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