SI2457-C-FT Silicon Laboratories Inc, SI2457-C-FT Datasheet - Page 8

• Manufacturer Part Number: SI2457-C-FT
• Description: IC ISOMODEM SYSTEM-SIDE 24TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2457-C-FT

• Package / Case: 24-TSSOP
• 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
• Operating Frequency: 4.92 MHz
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Supply Current: 26 mA
• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Si2457/34/15/04
8
CTS
RTS
8-B it Data
M ode
9-B it Data
M ode
R X
T X
t
t
R TS
R TS
UART Timing for Modem Transmit Path (9N1 Mode with 9th Bit Escape)
t
R TH
S tart
S tart
Figure 2. Asynchronous UART Serial Interface Timing Diagram
UART Time for Modem Receive Path (8N1 Mode)
D0
D0
D1
D1
D2
D2
D3
D3
Rev. 1.1
D4
D4
D5
D5
D6
D6
D7
D7
E S C
S top
S top
t
CTH