ST7540 STMicroelectronics, ST7540 Datasheet - Page 5

• Manufacturer Part Number: ST7540
• Description: IC TXRX FSK POWER LINE 28-TSSOP
• Manufacturer: STMicroelectronics
• Type: Transceiverr

Specifications of ST7540

• Number Of Drivers/receivers: 1/1
• Voltage - Supply: 5 V ~ 9 V
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Product: Modem Chip
• Data Rate: 4.8 KBd (Typ)
• Supply Voltage (max): 5.25 V or 13.5 V
• Supply Voltage (min): 4.75 V or 7.5 V
• Supply Current: 3.5 mA or 54 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• For Use With: 497-5485 - BOARD EVAL ST7540 PWR LINE TXRX
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Protocol: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-5527-5

ST7540
2
2.1
2.2
Pin settings
Pin connection
Figure 2.
Pin description
Table 1. Pin description
N°
1
2
3
4
5
6
REG_DATA
CD_PD
Name
RxTx
GND
RxD
TxD
Pin connection (top view)
Digital/Output
Digital/Input
with internal pull-down
Supply
Digital/Output
Digital/Input
with internal pull-up
Digital/Input
with internal pull-down
REG_DATA
BU/THERM
UART/SPI
CD_PD
PA_IN-
CLR/T
MCLK
RSTO
RxTx
Type
GND
RxD
TxD
V
WD
DD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Carrier, preamble or frame header detect output.
"1" No carrier, preamble or frame header detected
"0" Carrier, preamble or frame header detected
Mains or control register access selector
"1" - Control register access
"0" - Mains access
Digital ground
RX data output.
Rx or Tx mode selection input.
"1" - RX Session
"0" - TX Session
TX data input.
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Description
TEST2
TEST1
VDC
RX_IN
CL
Vsense
X2
X1_OSCIN
SV
TX_OUT
PA_IN+
V
V
PA_OUT
CC
SS
SS
Pin settings
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