The ICL32XX maintain the RS-232 ±5V minimum transmitter output" />
參數(shù)資料
型號： ICL3207CA-T
廠商： Intersil
文件頁數(shù)： 10/11頁
文件大?。?/td> 0K
描述： IC 5DRVR/3RCVR RS232 3V 24-SSOP
標準包裝： 1,000
類型： 收發(fā)器
驅(qū)動器/接收器數(shù)： 5/3
規(guī)程： RS232
電源電壓： 3 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 24-SSOP（0.209"，5.30mm 寬）
供應商設備封裝： 24-SSOP
包裝： 帶卷 (TR)
8
High Data Rates
The ICL32XX maintain the RS-232 ±5V minimum transmitter
output voltages even at high data rates. Figure 7 details a
transmitter loopback test circuit, and Figure 8 illustrates the
loopback test result at 120kbps. For this test, all transmitters
were simultaneously driving RS-232 loads in parallel with
1000pF, at 120kbps. Figure 9 shows the loopback results for
a single transmitter driving 1000pF and an RS-232 load at
250kbps. The static transmitters were also loaded with an
RS-232 receiver.
Interconnection with 3V and 5V Logic
The ICL32X7 directly interface with most 5V logic families,
including ACT and HCT CMOS. See Table 4 for more
information on possible combinations of interconnections.
FIGURE 7. TRANSMITTER LOOPBACK TEST CIRCUIT
FIGURE 8. LOOPBACK TEST AT 120kbps
ICL32X7
C1
C2
C4
C3
+
1000pF
V+
V-
5k
TIN
ROUT
C1+
C1-
C2+
C2-
RIN
TOUT
+
VCC
0.1
F
VCC
T1IN
T1OUT
R1OUT
5
s/DIV.
VCC = +3.3V
5V/DIV.
C1 - C4 = 0.1
F
FIGURE 9. LOOPBACK TEST AT 250kbps
TABLE 4. LOGIC FAMILY COMPATIBILITY WITH VARIOUS
SUPPLY VOLTAGES
SYSTEM
POWER-SUPPLY
VOLTAGE
(V)
VCC
SUPPLY
VOLTAGE
(V)
COMPATIBILITY
3.3
Compatible with all CMOS
families.
5
Compatible with all TTL and
CMOS logic families.
5
3.3
Compatible with ACT and HCT
CMOS, and with TTL.
Incompatible with AC, HC, or
CD4000 CMOS.
T1IN
T1OUT
R1OUT
2
s/DIV.
5V/DIV.
VCC = +3.3V
C1 - C4 = 0.1
F
ICL3207, ICL3217
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