參數(shù)資料
型號: TC850
廠商: TelCom Semiconductor, Inc.
英文描述: 15-BIT, FAST-INTEGRATING CMOS ANALOG-TO-DIGITAL CONVERTER
中文描述: 15位,快速整合過程CMOS模擬數(shù)字轉(zhuǎn)換器
文件頁數(shù): 13/14頁
文件大?。?/td> 164K
代理商: TC850
3-89
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
Figure 9. Conversion Timing, Demand Mode
Figure 10. Bus Output Timing, Demand Mode
WR PULSES ARE IGNORED
836 CLOCK CYCLES
1100 CLOCK CYCLES
INTERNAL
CLOCK
BUSY
DB0-DB7
CS
.
CE
NEXT CONVERT
COMMAND WILL
BE RECOGNIZED
PREVIOUS CONVERSION
DATA VALID
DATA MEANINGLESS
NEW CONVERSION DATA VALID
NEXT
CONVERSION
CAN BEGIN
319 CLOCK
CYCLES
125 CLOCK
CYCLES
. . . .
. . . . . . . .
WR
DB0-DB6
DB7
OVR/POL
L/H
tCE
tDHC
tDHR
tRE
CS
.
CE
HI-Z
*
DATA BITS 8 TO 14
HIGH IMPEDANCE
HIGH IMPEDANCE
DONT' CARE
DONT' CARE
DATA BITS
0 T0 6
HI-Z
"1"= INPUT
OVERRANGE
"1"= POSITIVE
POLARITY
DATA BIT 7
tOP
tLH
RD
NOTE:
CONT/DEMAND = LOW
*RD (as well as CS and CE) can go HIGH after each byte is read (i.e., in a
μ
P bus interface)
or remain LOW during the entire DATA-READ sequence (i.e.,
μ
P I/O port interface).
TC850
15-BIT, FAST-INTEGRATING CMOS
ANALOG-TO-DIGITAL CONVERTER
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