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UM232H Datasheet PDF : 25 Pages
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Document Reference No.: FT_000367
UM232H Single Channel USB Hi-Speed FT232H Development Module
Datasheet Version 1.2
Clearance No.: FTDI# 198
4.2 Signal Descriptions
Pins marked * are EEPROM selectable
Pin
Pin # Pin Name
13 ADBUS0
14 ADBUS1
15 ADBUS2
16 ADBUS3
17 ADBUS4
ASYNC
Serial
(RS232)
TXD
RXD
RTS#
CTS#
DTR#
SYNC
245 FIFO
D0
D1
D2
D3
D4
18 ADBUS5 DSR#
D5
19 ADBUS6 DCD#
D6
20 ADBUS7
RI#
D7
21 ACBUS0
*
TXDEN
25 ACBUS1
**
ACBUS1
26 ACBUS2
**
ACBUS2
27 ACBUS3
*
RXLED#
28 ACBUS4
*
TXLED#
29 ACBUS5
**
ACBUS5
30 ACBUS6
**
ACBUS6
RXF#
TXE#
RD#
WR
SIWU#
CLKOUT
OE#
31 ACBUS7 PWRSAV# PWRSAV#
32 ACBUS8
**
ACBUS8
**
ACBUS8
33 ACBUS9
**
ACBUS9
**
ACBUS9
Table 4.1 : UM232H Signals
FT232H
Pin functions (depends on configuration)
STYLE
ASYNC
245 FIFO
D0
D1
D2
D3
D4
D5
D6
D7
RXF#
TXE#
RD#
WR
ASYNC
Bit-bang
D0
D1
D2
D3
D4
D5
D6
D7
ACBUS0
WRSTB#
RDSTB#
ACBUS3
SYNC
Bit-bang
D0
D1
D2
D3
D4
D5
D6
D7
ACBUS0
WRSTB#
RDSTB#
ACBUS3
MPSSE
TCK/SK
TDI/DO
TDO/DI
TMS/CS
GPIOL0
GPIOL1
GPIOL2
GPIOL3
GPIOH0
GPIOH1
GPIOH2
GPIOH3
Fast Serial
interface
FSDI
FSCLK
FSDO
FSCTS
**
TriSt-UP
**
TriSt-UP
**
TriSt-UP
**
TriSt-UP
**
ACBUS0
**
ACBUS1
**
ACBUS2
**
ACBUS3
SIWU#
SIWU#
SIWU# GPIOH4 SIWU#
ACBUS5
ACBUS6
PWRSAV#
**
ACBUS8
**
ACBUS9
**
ACBUS5
ACBUS6
PWRSAV#
**
ACBUS8
**
ACBUS9
**
ACBUS5
ACBUS6
PWRSAV#
**
ACBUS8
**
ACBUS9
GPIOH5
GPIOH6
***
GPIOH7
**
ACBUS8
**
ACBUS9
**
ACBUS5
**
ACBUS6
PWRSAV#
**
ACBUS8
**
ACBUS9
CPU Style
FIFO
D0
D1
D2
D3
D4
D5
D6
D7
CS#
A0
RD#
WR
SIWU#
**
ACBUS5
**
ACBUS6
PWRSAV#
**
ACBUS8
**
ACBUS9
FT1248
MIOSI0
MIOSI1
MIOSI2
MIOSI3
MIOSI4
MIOSI5
MIOSI6
MIOSI7
SCLK
SS_N
MISO
ACBUS3
ACBUS4
ACBUS5
ACBUS6
PWRSAV#
ACBUS8
ACBUS9
Pins marked ** default to tri-stated inputs with an internal 75KΩ (approx) pull up resistor to VCCIO.
Pin marked *** default to GPIO line with an internal 75KΩ pull down resistor to GND. Using the EEPROM this
pin can be enabled USBVCC mode instead of GPIO mode.
8
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