参数资料
型号: M44C892
厂商: ATMEL CORP
元件分类: 微控制器/微处理器
英文描述: 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
封装: SSO-20
文件页数: 12/84页
文件大小: 643K
代理商: M44C892
M44C892
M44C092
Rev. A5, 14-Dec-01
2 (84)
M44C092
M44C892
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
17
18
19
20
16
VDD
BP40/INT3/SC
BP53/INT1
BP52/INT1
BP51/INT6
BP50/INT6
OSC1
OSC2
BP60/T3O
BP10
VSS
BP43/INT3/SD
BP42/T2O
BP41/VMI/T2I
BP23
BP22
BP21
BP20/NTE
BP63/T3I
BP13
13364
Figure 2. Pinning SSO20 package
Table 1 Pin description
Name
Type
Function
Alternate Function
Pin-No.
Reset State
VDD
Supply voltage
–––
1
NA
VSS
Circuit ground
–––
20
NA
BP10
I/O
Bidirectional I/O line of Port 1.0
–––
10
Input
BP13
I/O
Bidirectional I/O line of Port 1.3
–––
11
Input
BP20
I/O
Bidirectional I/O line of Port 2.0
NTE–test mode enable
13
Input
BP21
I/O
Bidirectional I/O line of Port 2.1
–––
14
Input
BP22
I/O
Bidirectional I/O line of Port 2.2
–––
15
Input
BP23
I/O
Bidirectional I/O line of Port 2.3
–––
16
Input
BP40
I/O
Bidirectional I/O line of Port 4.0
SC-serial clock or INT3 external
interrupt input
2
Input
BP41
I/O
Bidirectional I/O line of Port 4.1
VMI voltage monitor input or T2I
external clock input Timer 2
17
Input
BP42
I/O
Bidirectional I/O line of Port 4.2
T2O Timer 2 output
18
Input
BP43
I/O
Bidirectional I/O line of Port 4.3
SD serial data I/O or INT3–exter-
nal interrupt input
19
Input
BP50
I/O
Bidirectional I/O line of Port 5.0
INT6 external interrupt input
6
Input
BP51
I/O
Bidirectional I/O line of Port 5.1
INT6 external interrupt input
5
Input
BP52
I/O
Bidirectional I/O line of Port 5.2
INT1 external interrupt input
4
Input
BP53
I/O
Bidirectional I/O line of Port 5.3
INT1 external interrupt input
3
Input
BP60
I/O
Bidirectional I/O line of Port 6.0
T3O Timer 3 output
9
Input
BP63
I/O
Bidirectional I/O line of Port 6.3
T3I Timer 3 input
12
Input
OSC1
I
Oscillator input
4-MHz crystal input or 32-kHz
crystal input or external clock in-
put or external trimming resistor
input
7
Input
OSC2
O
Oscillator output
4-MHz crystal output or 32-kHz
crystal output
8
NA
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