參數(shù)資料
型號： ST162552
廠商： Exar Corporation
英文描述： DUAL ASYNCHRONOUS RECEIVER/TRANSMITTER WITH FIFOs
中文描述： 雙異步接收器/發(fā)送器與FIFO的
文件頁數(shù)： 1/28頁
文件大?。?/td> 121K
代理商： ST162552
ST16C2552
Printed December 17, 1996
PLCC Package
DUAL ASYNCHRONOUS RECEIVER/TRANSMITTER WITH FIFOs
DESCRIPTION
The ST16C2552 is a dual asynchronous receiver and
transmitter with 16 byte transmit and receive FIFOs.
Independent programmable baud rate generators are
provided to select transmit and receive clock rates
from 50Hz to 1.5 MHz for each UART.
The on board status registers of the ST16C2552
provide the error conditions, type and status of the
transfer operation being performed. Complete MO-
DEM control capability and a processor interrupt
system that may be software tailored to the user’s
requirements are included. The ST16C2552 provides
internal loop-back capability for on board diagnostic
testing.
Signalling for DMA transfers is done through two pins
per channel ( TXRDY*, RXRDY* ). The RXRDY*
function is multiplexed on one pin with the OP2* and
BAUDOUT functions. CPU can select these functions
through the Alternate Function Register.
The ST16C2552 is fabricated in an advanced 0.6
m
CMOS process to achieve low power and high speed
requirements.
FEATURES
·
Pin to pin and functional compatible to National
NS16C552
·
16 byte transmit FIFO
·
16 byte receive FIFO with error flags
·
Modem control signals (CTS*, RTS*, DSR*, DTR*,
RI*, CD*)
·
Programmable character lengths (5, 6, 7, 8) bits
·
Even, odd, or no parity bit generation and detection
·
Status report register
·
TTL compatible inputs, outputs
·
Independent transmit and receive control
·
Software compatible with INS8250, NS16C550
·
460.8 kHz transmit/receive operation with 7.372
MHz crystal or external clock source
ORDERING INFORMATION
Part number
ST16C2552CJ44
ST16C2552IJ44
Package
PLCC
PLCC
Operating temperature
0° C to + 70° C
-40° C to + 85° C
6
5
4
3
2
1
4
4
4
4
4
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
1
1
2
2
2
2
2
2
2
2
2
D5
D6
D7
A0
XTAL1
GND
XTAL2
A1
A2
CHSEL
INTB
C
M
I
R
G
R
I
R
T
D
C
RXA
TXA
DTRA*
RTSA*
MFA*
INTA
VCC
TXRDYB*
RIB*
CDB*
DSRB*
D
D
D
D
D
T
V
R
C
D
C
ST16C2552CJ44
STARTECH
An Company
Rev. 2.0
3-135
4
4
4
4
4
4
4
4
4
3
3
3
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
1
1
1
1
1
1
1
2
2
2
2
2
ST16C2552CQ48
N.C.
D5
D6
D7
A0
XTAL1
GND
XTAL2
A1
A2
CHSEL
INTB
N
C
M
I
R
G
R
I
R
T
D
C
RXA
TXA
DTRA*
RTSA*
MFA*
INTA
VCC
TXRDYB*
RIB*
CDB*
DSRB*
N.C.
D
D
D
D
D
T
V
R
C
D
C
N
相關(guān)PDF資料
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ST16C2552CJ 2.97V TO 5.5V DUAL UART WITH 16-BYTE FIFO
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