FN4805.21 March 1, 2006 Interconnection with 3V and 5V Logic The ICL32XX directly interface with 5V CMOS and TTL logic families. Neverth" />
參數(shù)資料
型號(hào): ICL3221IAZ
廠商: Intersil
文件頁(yè)數(shù): 7/28頁(yè)
文件大小: 0K
描述: IC TXRX SGL RS232 3-5.5V 16SSOP
標(biāo)準(zhǔn)包裝: 77
類型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 1/1
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: 16-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 16-SSOP
包裝: 管件
產(chǎn)品目錄頁(yè)面: 1240 (CN2011-ZH PDF)
15
FN4805.21
March 1, 2006
Interconnection with 3V and 5V Logic
The ICL32XX directly interface with 5V CMOS and TTL logic
families. Nevertheless, with the ICL32XX at 3.3V, and the
logic supply at 5V, AC, HC, and CD4000 outputs can drive
ICL32XX inputs, but ICL32XX outputs do not reach the
minimum VIH for these logic families. See Table 4 for more
information.
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. ICL32XX
outputs are incompatible with AC,
HC, and CD4000 CMOS inputs.
Typical Performance Curves VCC = 3.3V, TA = 25°C
FIGURE 13. TRANSMITTER OUTPUT VOLTAGE vs LOAD
CAPACITANCE
FIGURE 14. SLEW RATE vs LOAD CAPACITANCE
FIGURE 15. SUPPLY CURRENT vs LOAD CAPACITANCE
WHEN TRANSMITTING DATA
FIGURE 16. SUPPLY CURRENT vs LOAD CAPACITANCE
WHEN TRANSMITTING DATA
-6
-4
-2
0
2
4
6
1000
2000
3000
4000
5000
0
LOAD CAPACITANCE (pF)
TRANSMIT
T
E
R
OU
TP
U
T
VOL
TA
GE
(V)
1 TRANSMITTER AT 250kbps
VOUT+
VOUT -
1 OR 2 TRANSMITTERS AT 30kbps
LOAD CAPACITANCE (pF)
SLE
W
R
A
TE
(V
/
s)
0
1000
2000
3000
4000
5000
5
10
15
20
25
+SLEW
-SLEW
0
5
10
15
20
25
30
45
35
40
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
SUPPL
Y
CURRENT
(mA)
20kbps
250kbps
120kbps
ICL3221
0
5
10
15
20
25
30
45
35
40
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
SUPPL
Y
CURRENT
(mA)
20kbps
250kbps
120kbps
ICL3222 - ICL3232
ICL3221, ICL3222, ICL3223, ICL3232, ICL3241, ICL3243
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