SI2457-D-FT Silicon Laboratories Inc, SI2457-D-FT Datasheet - Page 14

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

Specifications of SI2457-D-FT

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

AN93
2.1.4.1. Reset Strapping Options for TSSOP-24 with UART-Interface
UART-interface options for the 24-pin TSSOP package are shown in Table 6 below.
2.1.4.2. Reset Strapping Options for TSSOP-24 with Parallel-Interface
Parallel-interface options for the 24-pin TSSOP package appear in Table 7 below. The EEPROM and autobaud
options are not available when the parallel interface is selected.
14
Input Clock
4.9152 MHz
27 MHz
32 kHz
Disabled?
Autobaud
Mode
Yes
Yes
Yes
No
No
No
Input Clock
4.9152 MHz
27 MHz
Table 7. TSSOP-24 Parallel-Interface Options
Mode
Table 6. TSSOP-24 UART-Interface Options
Three-Wire
Interface?
EEPROM
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Pin 10, WR
Pin 9, RD
FSYNC
Pin 4
1
1
1
0
1
0
1
0
1
0
1
0
1
0
Rev. 1.3
Reset-Strap Pins
Pin 11, CTS
Pin 15, AOUT
Pin 16, INT
Pin 11
SCLK
0
1
1
1
1
1
1
1
1
1
1
1
1
1
Reset-Strap Pins
Pin 17
Pin 15
INT
RI
0
0
0
0
1
1
1
1
1
0
0
1
1
1
SDI/EESD
Pin 18
1
1
0
0
1
1
0
0
1
1
0
0
Pin 23
DCD
X
X
X
X
1
1
1
1
0
0
0
0