CH2056A ET Cermetek Microelectronics, CH2056A ET Datasheet - Page 20

• Manufacturer Part Number: CH2056A ET
• Manufacturer: Cermetek Microelectronics

Specifications of CH2056A ET

• Main Category: Single Chip
• Power Supply Type: Analog
• Operating Supply Voltage (typ): 3.3/5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Lead Free Status / RoHS Status: Not Compliant

Cermetek Microelectronics, Inc.
Table 7A. HS Modem Electrical Specifications VCC = 5V ± 10%, Temp = 0°C to 70°F (unless otherwise stated).
Table 7B. HS Modem Electrical Specifications VCC = 3.3V ± 10%, Temp = 0°C to 70°F (unless otherwise
stated).
2007 Cermetek Microelectronics, Inc.
V
I
I
I
I
I
V
V
VT+
VT-
V
V
I
I
C
V
I
I
I
I
I
V
V
VT+
VT-
V
V
I
I
C
1. Output Load = 50 pF ± one TTL.
2. With recommended 30k ohm external resistor. Maximum resistor range: 10k to 100k ohm.
CC
CC
CCSL
CCZP
RIZP
IN
OH
CC
CC
CCSL
CCZP
RIZP
IN
OH
CC
IH
IL
OH
OL
CC
IH
IL
OH
OL
p
p
Symbol
Symbol
Off Hook
On Hook
Off Hook
On Hook
Positive Supply Voltage
Operating Current @
V
Operating Current @
V
Power Current @
V
Zero Power Current @
V
Current Supplied into RI pin when in Zero Power
Mode @ V
High Level Input Voltage
Low Level Input Voltage
Positive Hysteresis Threshold for RESET Pin
Negative Hysteresis Threshold for RESET Pin
High Level Output (I
Low Level Output (I
Input Leakage Current (TXD, DTR, RTS)
Input Current (RST)
Capacitive Load (TXD, DTR, RTS)
Capacitive Load (RST)
Positive Supply Voltage
Operating Current @
V
Operating Current @
V
Power Current @
V
Zero Power Current @
V
Current Supplied into RI pin when in Zero Power
Mode @ V
High Level Input Voltage
Low Level Input Voltage
Positive Hysteresis Threshold for RESET Pin
Negative Hysteresis Threshold for RESET Pin
High Level Output (I
Low Level Output (I
Input Leakage Current (TXD, DTR, RTS)
Input Current (RST)
Capacitive Load (TXD, DTR, RTS)
Capacitive Load (RST)
CC
CC
CC
CC
CC
CC
CC
CC
= 5.5V when modem is Off Hook
= 5.5V when modem is On Hook
= 5.5V when modem is in Sleep Mode
= 5.5V when modem is in Zero Power Mode
= 3.6V when modem is Off Hook
= 3.6V when modem is On Hook
= 3.6V when modem is in Sleep Mode
= 3.6V when modem is in Zero Power Mode
CC
CC
= 5.5V
= 5.5V
Characteristic
Characteristic
OL
OL
2
2
OH
OH
= 1.6 mA)
= 1.6 mA)
= 0.5 mA)
= 0.5 mA)
1
1
1
1
NOTES for Table 7A & 7B
1
1
1
1
Page 20
2
2
CH179XA/2056A High Speed Family of Ultra Small Modems
Min.
Min.
4.5
2.0
2.4
3.0
2.0
2.4
Document No. 607-0020 Revision B (01/07)
Typ.
Typ.
0.16
0.16
5.0
0.0
2.5
0.5
3.3
0.0
2.5
0.5
62
60
22
52
50
12
Max.
Max.
100
500
100
500
5.5
0.8
0.6
3.6
0.8
0.6
10
10
8
8
Units
Units
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
µA
µA
µA
µA
pF
pF
pF
pF
V
V
V
V
V
V
V
V
V
V
V
V
V
V