ICL3222 Intersil Corporation, ICL3222 Datasheet - Page 15

• Manufacturer Part Number: ICL3222
• Description: 1?a Supply-current, +3v To +5.5v, 250kbps, Rs-232 Transmitters/receivers
• Manufacturer: Intersil Corporation

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 V
information.
Typical Performance Curves
FIGURE 13. TRANSMITTER OUTPUT VOLTAGE vs LOAD
FIGURE 15. SUPPLY CURRENT vs LOAD CAPACITANCE
45
40
35
30
25
20
15
10
-2
-4
-6
5
0
6
4
2
0
0
0
1 TRANSMITTER AT 250kbps
1 OR 2 TRANSMITTERS AT 30kbps
ICL3221
IH
CAPACITANCE
WHEN TRANSMITTING DATA
for these logic families. See Table 4 for more
1000
1000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
ICL3221, ICL3222, ICL3223, ICL3232, ICL3241, ICL3243
2000
2000
15
3000
3000
250kbps
120kbps
V
20kbps
OUT
VCC = 3.3V, TA = 25°C
+
V
4000
OUT
4000
-
5000
5000
POWER-SUPPLY
FIGURE 16. SUPPLY CURRENT vs LOAD CAPACITANCE
TABLE 4. LOGIC FAMILY COMPATIBILITY WITH VARIOUS
VOLTAGE
25
20
15
10
SYSTEM
45
40
35
30
25
20
15
10
5
FIGURE 14. SLEW RATE vs LOAD CAPACITANCE
5
0
0
3.3
(V)
0
5
5
ICL3222 - ICL3232
SUPPLY VOLTAGES
WHEN TRANSMITTING DATA
1000
1000
+SLEW
VOLTAGE
SUPPLY
LOAD CAPACITANCE (pF)
V
LOAD CAPACITANCE (pF)
(V)
3.3
3.3
CC
5
2000
2000
Compatible with all CMOS
families.
Compatible with all TTL and
CMOS logic families.
Compatible with ACT and HCT
CMOS, and with TTL. ICL32XX
outputs are incompatible with AC,
HC, and CD4000 CMOS inputs.
-SLEW
3000
3000
COMPATIBILITY
120kbps
250kbps
20kbps
4000
4000
March 1, 2006
FN4805.21
5000
5000