參數(shù)資料
型號: IS82C50A-5Z
廠商: Intersil
文件頁數(shù): 13/25頁
文件大?。?/td> 0K
描述: IC PERIPH UART/BRG 10MHZ 44-PLCC
標(biāo)準(zhǔn)包裝: 26
特點: 單芯片 UART/BRG
通道數(shù): 1,UART
規(guī)程: RS232C
電源電壓: 4.5 V ~ 5.5 V
帶并行端口:
帶故障啟動位檢測功能:
帶調(diào)制解調(diào)器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 44-LCC(J 形引線)
供應(yīng)商設(shè)備封裝: 44-PLCC
包裝: 管件
20
FN2958.5
August 24, 2006
82C50A
AC Test Circuit
AC Testing Input, Output Waveform
TEST CONDITION DEFINITION TABLE
IOH
IOL
V1
R1
C1
-2.5mA
+2.5mA
1.7V
520
Ω
100pF
OUTPUT FROM
DEVICE UNDER TEST
TEST
C1 (NOTE)
POINT
NOTE:
Includes stay and jig capacitance.
V1
R1
INPUT
VIH + 0.4V
VIL - 0.4V
OUTPUT
VOH
VOL
1.5V
AC Testing: All input signals must switch between VIL -0.4V and
VIH +0.4V. Input rise and fall times are driven at 1ns/V.
Timing Waveforms
FIGURE 3. EXTERNAL CLOCK INPUT
FIGURE 4. AC TEST POINTS
FIGURE 5. BAUDOUT TIMING
2.0V
0.8V
tXH
(27)
XTAL1
tXL
(28)
2.0V
0.8V
N
(29)
XTAL1
(31) tBHD
(30) tBLD
tHW (33)
tLW (32)
tLW
(32)
tHW
(33)
(30)
tBLD
(30)
tBLD
(31)
tBHD
(31)
tBHD
(30)
tBLD
tLW = 2XTAL1 CYCLES
(32)
tHW = (N - 2) XTAL1 CYCLES
(33)
(31) tBHD
tHW
(33)
BAUD OUT
(
÷1)
BAUD OUT
(
÷2)
BAUD OUT
(
÷3)
BAUD OUT
(
÷N, N > 3)
NOTE:
tBLD (
÷1) is the only spec measure from XTL1 falling edge. All other tBLD’s and tBHD’s are measured from XTAL1 rising edge.
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