SI2414 SILABS [Silicon Laboratories], SI2414 Datasheet - Page 77

• Manufacturer Part Number: SI2414
• Manufacturer: SILABS [Silicon Laboratories]

Pin Descriptions: Si2456/33/14
Pin #
5, 19
6, 18
7,17
10
1
2
3
4
8
9
CLKIN/XTALI
CLKOUT/A0
VDA, VDB
Pin Name
TXD/WR
RXD/RD
RTS/D7
XTALO
VD3.3
GND
D6
Clock Input/Crystal Oscillator Pin.
This pin provides support for parallel resonant, AT cut crystals. XTALI also acts as an
input in the event that an external clock source is used in place of a crystal. A
4.9152 MHz crystal or 4.9152 MHz clock is required.
Crystal Oscillator Pin.
This pin provides support for parallel-resonant AT-cut crystals. XTALO serves as the
output of the crystal amplifier.
Clock Output/Address Bit 0.
Clock output in serial mode. Address Enable in parallel mode.
Data Bit.
Bidirectional parallel bus data bit 6 in parallel mode.
Digital Supply Voltage.
Provides the 3.3 V digital supply voltage to the Si2456/33/14.
Ground.
Connects to the system digital ground.
Digital Rail.
Pin provides additional power supply voltage to the Si2456/33/14.
Request-to-Send/Data Bit.
Request-to-send (for flow control) in serial mode. Bidirectional parallel bus data bit 7
in parallel mode.
Receive Data/Read Enable.
Data output to DTE RXD pin in serial mode. Active low read enable pin in parallel
mode.
Transmit Data/Write Enable.
Data input from DTE TXD pin in serial mode. Active low write enable pin in parallel
mode.
CLKIN/XTALI
CLKOUT/A0
TXD/WR
RXD/RD
CTS/CS
RTS/D7
RESET
XTALO
VD3.3
GND
VDA
D6
1
2
3
4
5
6
7
8
9
10
11
12
Rev. 0.9
16
15
14
13
24
23
22
21
20
19
18
17
Description
Si2456/Si2433/Si2414
D5
DCD/D4
ESC/D3
C1A
ISOB
VD3.3
GND
VDB
D2
RI/D1
INT/D0
AOUT/INT
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