SI2457-C-FS Silicon Laboratories Inc, SI2457-C-FS Datasheet - Page 7

• Manufacturer Part Number: SI2457-C-FS
• Description: IC ISOMODEM SYSTEM-SIDE 16SOIC
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2457-C-FS

• Mfg Application Notes: SI2493/57/34/15/04, Appl Note AN93
• Data Format: V.21, V.22, V.23, V.32, V.34, V.90, Bell 103, Bell 212A
• Baud Rates: 56k
• Interface: Parallel, UART
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 5. Absolute Maximum Ratings
Table 6. Switching Characteristics
(V
Parameter
DC Supply Voltage
Input Current, Si2457/34/15/04 Digital
Input Pins
Digital Input Voltage
CLKIN/XTALI Input Voltage
Operating Temperature Range
Storage Temperature Range
Note: Permanent device damage may occur if the above absolute maximum ratings are exceeded. Functional operation
Parameter
CLKOUT Output Clock Frequency
Baud Rate Accuracy
Start Bit ↓ to RTS ↓
CTS or RTS ↑ High to Start Bit↓
Stop Bit ↑ to CTS ↑
RESET ↓ to RESET ↑
RESET ↑ to 1st AT Command
Address Setup
Address Hold
WR Low Pulse Width
Write Data Setup Time
Write Cycle Time
Chip Select Setup
Chip Select Hold
RD Low Pulse Width
RD Low to Data Driven Time
Data Hold
RD High to Hi-Z Time
Read Cycle Time
Note: All timing is referenced to the 50% level of the waveform. Input test levels are V
D
= 3.0 to 3.6 V, T
should be restricted to the conditions as specified in the operational sections of this data sheet. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
A
= 0 to 70 °C for F-grade, T
A
= –40 to +85 °C for G-grade)
Symbol
t
t
WDSU
t
t
t
t
t
RLDD
t
t
RTH
CTH
t
t
t
CSS
CSH
t
t
Symbol
RTS
t
t
t
t
WC
WL
DH
RC
BD
RS
AS
AH
RL
DZ
AT
V
T
V
Rev. 1.1
V
XIND
I
T
STG
IND
IN
D
A
2.048
Min
300
120
120
5.0
–1
10
15
50
20
10
50
10
—
—
—
—
0
0
–0.3 to (V
–0.3 to 5.3
–10 to 100
–40 to 150
1/(2
Value
±10
4.1
Si2457/34/15/04
Rate)
IH
Typ
x
D
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
= V
Baud
+ 0.3)
D
– 0.4 V, V
49.152
Max
IL
20
30
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
= 0.4 V
Unit
mA
°C
°C
V
V
V
Unit
MHz
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
7