参数资料
型号: DS89C430-QNL+
厂商: Maxim Integrated Products
文件页数: 44/46页
文件大小: 0K
描述: IC MCU FLASH 16KB 33MHZ 44-PLCC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 26
系列: 89C
核心处理器: 8051
芯体尺寸: 8-位
速度: 33MHz
连通性: EBI/EMI,SIO,UART/USART
外围设备: 电源故障复位,WDT
输入/输出数: 32
程序存储器容量: 16KB(16K x 8)
程序存储器类型: 闪存
RAM 容量: 1K x 8
电压 - 电源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
产品目录页面: 703 (CN2011-ZH PDF)
DS89C430/DS89C450 Ultra-High-Speed Flash Micrcontrollers
7 of 46
Note 15: The clock divide and crystal multiplier control bits in the PMR register determine the system clock frequency and the minimum/
maximum external clock speed. The term “1/tCLCL” used in the AC Characteristics variable timing table is determined from the
following table. The minimum/maximum external clock speed columns clarify that [(external clock speed) x (multipliers)] cannot
exceed the rated speed of the device. In addition, the use of the crystal multiplier feature establishes a minimum external speed.
External Clock Speed
4X/2X
CD1
CD0
Number of External Clock
Cycles per System Clock
(1/tCLCL)
Min
Max
1
0
1/4
5MHz
8.25MHz
0
1/2
10MHz
16.5MHz
X
0
1
Reserved
X
1
0
1
See AC Characteristics
X
1
1024
See AC Characteristics
Note 16: External MOVX instruction times are dependent upon the setting of the MD2, MD1, and MD0 bits in the clock control register. The
terms “tSTC1, tSTC2, tSTC3” used in the variable timing table above are calculated through the use of the table given below.
MD2
MD1
MD0
MOVX Instruction Time
tSTC1
tSTC2
tSTC3
tSTC4
tSTC5
0
2 Machine Cycles
0 tCLCL
0
1
3 Machine Cycles
2 tCLCL
1 tCLCL
0 tCLCL
1 tCLCL
0
1
0
4 Machine Cycles
6 tCLCL
1 tCLCL
0 tCLCL
1 tCLCL
0
1
5 Machine Cycles
10 tCLCL
1 tCLCL
0 tCLCL
1 tCLCL
1
0
6 Machine Cycles
14 tCLCL
5 tCLCL
4 tCLCL
1 tCLCL
1
0
1
7 Machine Cycles
18 tCLCL
5 tCLCL
4 tCLCL
1 tCLCL
1
0
8 Machine Cycles
22 tCLCL
5 tCLCL
4 tCLCL
1 tCLCL
1
9 Machine Cycles
26 tCLCL
5 tCLCL
4 tCLCL
1 tCLCL
Note 17: Maximum load capacitance (to meet the above timing) for Port 0, ALE, PSEN, WR, and RD is limited to 60pF. XTAL1 and XTAL2 load
capacitance are dependent upon the frequency of the selected crystal.
Figure 1. Nonpage Mode Timing
ALE
Port 0
Port 2
LSB
DATA
XTAL1
PSEN
RD
MSB
WR
LSB
DATA
MOVX
OPCODE
tCLCL
tAVLL2
tLHLL
tWLWH
tLLAX2
tLLWL
tLLPL
tLLAX
tLLIV
tAVIV0
tPXIX
tPLPH
tPLIV
tAVLL3
tLLAX3
tRLRH
tPLAZ
tWHLH
tWHQX
tQVWX
tAVIV2
tAVDV2
tAVWL2
tPXIZ
tAVLL
tLLDV
tAVDV0
tRHDX
tRHDZ
tRLDV
tAVWL0
相关PDF资料
PDF描述
D38999/24WF32PN CONN RCPT 32POS JAM NUT W/PINS
0355240924 1.78MM MALE 9 POS VERT BLUE
D38999/26FD19PA CONN PLUG 19POS STRAIGHT W/PINS
D38999/20FB98JN CONN RCPT 6POS WALL MNT W/SCKT
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相关代理商/技术参数
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DS89C430-QNL+ 制造商:Maxim Integrated Products 功能描述:IC 8BIT MCU 8051 33MHZ LCC-44
DS89C440 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Ultra-High-Speed Flash Microcontrollers
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