參數(shù)資料
型號: IP82C50A-5
廠商: HARRIS SEMICONDUCTOR
元件分類: 微控制器/微處理器
英文描述: CMOS Asynchronous Communications Element
中文描述: 1 CHANNEL(S), 625K bps, SERIAL COMM CONTROLLER, PDIP40
文件頁數(shù): 18/21頁
文件大小: 101K
代理商: IP82C50A-5
18
AC Test Circuit
AC Testing Input, Output Waveform
BAUD GENERATOR
(29)
N
Baud Divisor
1
2
16
-1
250
(30)
TBLD
Baud Output Negative Edge Delay
-
ns
(31)
TBHD
Baud Output Positive Edge Delay
-
250
ns
(32)
TLW
Baud Output Down Time
40
-
ns
T
XL
= 50ns
T
XH
= 50ns
(33)
THW
Baud Output Up Time
40
-
ns
RECEIVER
(34)
TSCD
Delay from RCLK to Sample Time
-
250
ns
(35)
TSlNT
Delay from Stop to Set Interrupt
1
1
BAUDOUT
Cycles
(36)
TRlNT
Delay from DISTR DISTR (RD RBR) to
Reset Interrupt
-
250
ns
TRANSMITTER
(37)
THR
Delay from DOSTR DOSTR to Reset Interrupt
-
250
ns
(38)
TlRS
Delay from Initial INTR Reset to Transmit Start
8
24
BAUDOUT
Cycles
(39)
TS1
Delay from Initial Write to Interrupt
16
32
BAUDOUT
Cycles
(40)
TSTl
Delay from Stop to Interrupt (THRE)
8
24
BAUDOUT
Cycles
(41)
TIR
Delay from DISTR DISTR (RD lIR) to Reset Interrupt
(THRE)
-
250
ns
MODEM CONTROL
(42)
TMDO
Delay from DOSTR DOSTR to Output
-
500
ns
(43)
TSIM
Delay to Set Interrupt from Modem Input
-
500
ns
(44)
TRIM
Delay to Reset Interrupt from DISTR DlSTR
(RD MSR)
-
500
ns
AC Electrical Specifications
V
CC
= 5.0V
±
10%, T
A
= 0
o
C to +70
o
C (C82C50A-5)
T
A
= -40
o
C to +85
o
C (l82C50A-5)
T
A
= -55
o
C to +125
o
C (M82C50A-5)
Timing
(Continued)
SYMBOL
PARAMETER
82C50A-5
UNITS
TEST CONDITIONS
MIN
MAX
OUTPUT FROM
DEVICE UNDER TEST
TEST
POINT
C1 (NOTE)
NOTE: Includes stay and jig capacitance.
V1
R1
TEST CONDITION DEFINITION TABLE
IOH
IOL
V1
R1
C1
-2.5mA
+2.5mA
1.7V
520
100pF
INPUT
V
IH
+ 0.4V
V
IL
- 0.4V
OUTPUT
V
OH
V
OL
1.5V
1.5V
AC Testing: All input signals must switch between V
IL
-0.4V and
V
IH
+0.4V. Input rise and fall times are driven at 1ns/V.
82C50A
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