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參數(shù)資料
| 型號： | BU24591 |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, MICROCONTROLLER, PQFP64 |
| 封裝： | QFP-64 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 101K |
| 代理商： | BU24591 |
BU24591
Optical ICs
!
Circuit operation
(1) Single power supply operation (V
DD
=2.3V to 3.6V)
(2) Memory size
Program memory ROM
16384
×
8 bits
General Purpose RAM
512
×
4 bits
RAM for LCD
20
×
4 bits
(3) Instruction execution time. (one-cycle instruction)
1.5
μ
sec (at 4MHz)
(4) Subroutine nesting: 8 levels
(5) Interrupts:
6
External:
3
Internal:
3 (Timer/counter, serial I/O)
(6) ROM data table function (Data table area 16KBytes)
(7) Power saving mode.
(8) 20-Segment LCD built-in driver available for many kinds of displays.
Bias:
1/3
Duty:
1/3, 1/4 (programmable)
Built-in bias resistance (approximately 50k
×
3 stages)
(9) LCD segment output can be switched into CMOS output by program.
20 Segments can be switched in 4 ports.
Upon resetting, CMOS output is specified and polarity is “L”.
(10) Remote-control receiver circuit is included. (Pulse width measuring instrument)
(11) 8-channel 8-bit A/D converter is included.
(12) Each of A/D inputs can be used as digital input by program.
(13) Built-in 8-bit timer counter (als used for event counter).
(14) Built-in two systems of serial I/O that can interface with any external LSI. (LSB first)
(15) 12 I/O ports that can pull up by program.
(16) 5 input port that can pull up by program.
!
External dimensions
(Units : mm)
7/7
QFP-A64
0.15
±
0.1
48
33
32
17
49
64
1
16
14.0
±
0.2
16.4
±
0.3
1
±
0
0.35
±
0.1
0
0
1
±
0
0.8
2
±
0
0.15
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