参数资料
型号: MC16S2CPU20B1
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, 20.97 MHz, MICROCONTROLLER, PQFP100
封装: TQFP-100
文件页数: 34/104页
文件大小: 812K
代理商: MC16S2CPU20B1
MC68HC16S2
MOTOROLA
MC68HC16S2TS/D
35
STRB — Address Strobe/Data Strobe
0 = Address strobe
1 = Data strobe
This bit controls the timing for assertion of a chip-select in asynchronous mode. Selecting address
strobe causes chip-select to be asserted synchronized with address strobe. Selecting data strobe caus-
es chip-select to be asserted synchronized with data strobe.
DSACK[3:0] — Data and Size Acknowledge
This field specifies the source of DSACK in asynchronous mode. It also allows the user to adjust bus
timing with internal DSACK generation by controlling the number of wait states that are inserted to op-
timize bus speed in a particular application. Table 26 shows the DSACK[3:0] encoding. The fast termi-
nation encoding (%1110) is used for two-cycle access to external memory.
SPACE[1:0] — Address Space
Use this option field to select an address space for the chip-select logic. The CPU16 normally operates
in supervisor space, but interrupt acknowledge cycles must take place in CPU space. Table 27 shows
address space bit encodings.
Table 25 R/W Encodings
R/W[1:0]
Description
00
Reserved
01
Read only
10
Write only
11
Read/Write
Table 26 DSACK Field Encoding
DSACK[3:0]
Clock Cycles Required
Per Access
Wait States
Per Access
0000
3
0 Wait states
0001
4
1 Wait state
0010
5
2 Wait states
0011
6
3 Wait states
0100
7
4 Wait states
0101
8
5 Wait states
0110
9
6 Wait states
0111
10
7 Wait states
1000
11
8 Wait states
1001
12
9 Wait states
1010
13
10 Wait states
1011
14
11 Wait states
1100
15
12 Wait states
1101
16
13 Wait states
1110
2
Fast termination
1111
External DSACK
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相关PDF资料
PDF描述
MC68HC16X1CTH 16-BIT, MROM, 16.78 MHz, MICROCONTROLLER, PQFP120
MC68HC24VP 16 I/O, PIA-GENERAL PURPOSE, PDIP40
MC68HC33CFG 48 I/O, PIA-GENERAL PURPOSE, PQFP100
MC68HC33FG 48 I/O, PIA-GENERAL PURPOSE, PQFP100
MC68HC56FN 1 CHANNEL(S), LOCAL AREA NETWORK CONTROLLER, PQCC28
相关代理商/技术参数
参数描述
MC16XSD200FK 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Dual 16 mOhm High Side Switch
MC16Z1CFC25B1 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC16Z1CPV20B1 制造商:Rochester Electronics LLC 功能描述:16 BIT MCU, 1K RAM - Bulk
MC16Z3BCAG16 功能描述:16位微控制器 - MCU 16BIT MCU 4KRAM 8KROM RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC-17 功能描述:TERM BARRIER 17CIRC DUAL ROW RoHS:是 类别:连接器,互连式 >> 接线座 - 隔板块 系列:M 标准包装:10 系列:Beau™ 38780 端接块类型:阻隔块 电路数:15 导线入口数目:30 间距:0.438"(11.12mm) 行数:2 电流:15A 电压:300V 线规:14-22 AWG 顶部端子:螺钉 底部端子:焊片 阻挡层类型:双壁(双) 特点:法兰 颜色:黑 包装:散装 安装类型:通孔 工作温度:- 材料 - 绝缘体:聚对苯二甲酸丁二酯(PBT),玻璃纤维增强型 材料可燃性额定值:UL94 V-0 其它名称:038780-111538780-1115387801115