參數(shù)資料
型號: 935270075551
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 4 CHANNEL(S), 5M bps, SERIAL COMM CONTROLLER, PQFP80
封裝: 12 X 12 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-315-1, LQFP-80
文件頁數(shù): 28/56頁
文件大小: 715K
代理商: 935270075551
Philips Semiconductors
SC16C554/554D
Quad UART with 16-byte FIFO and infrared (IrDA) encoder/decoder
Product data
Rev. 02 — 13 March 2003
34 of 53
9397 750 11002
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
7.11 SC16C554/554D external reset conditions
8.
Limiting values
Table 23:
Reset state for registers
Register
Reset state
IER
IER[7-0] = 0
ISR
ISR[7-1] = 0; ISR[0] = 1
LCR
LCR[7-0] = 0
MCR
MCR[7-0] = 0
LSR
LSR[7] = 0; LSR[6-5] = 1; LSR[4-0] = 0
MSR
MSR[7-4] = input signals; MSR[3-0] = 0
FCR
FCR[7-0] = 0
EFR
EFR[7-0] = 0
Table 24:
Reset state for outputs
Output
Reset state
TXA, TXB, TXC, TXD
HIGH
RTSA, RTSB, RTSC, RTSD
HIGH
DTRA, DTRB, DTRC, DTRD
HIGH
RXRDY
HIGH
TXRDYLOW
Table 25:
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
Min
Max
Unit
VCC
supply voltage
-
7
V
Vn
voltage at any pin
GND
0.3 V
CC + 0.3
V
Tamb
operating temperature
40
+85
°C
Tstg
storage temperature
65
+150
°C
Ptot(pack)
total power dissipation per
package
-
500
mW
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