O
參數(shù)資料
型號: XR16M554IJ-0B-EVB
廠商: Exar Corporation
文件頁數(shù): 25/46頁
文件大?。?/td> 0K
描述: EVAL BOARD FOR XR16M554-B 68PLCC
標(biāo)準(zhǔn)包裝: 1
系列: *
XR16M554/554D
31
REV. 1.0.0
1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
AC ELECTRICAL CHARACTERISTICS
TA = -40
O TO +85OC, VCC IS 1.62 TO 3.63V, 70 PF LOAD WHERE APPLICABLE
SYMBOL
PARAMETER
LIMITS
1.8V ± 10%
MIN
MAX
LIMITS
2.5V ± 10%
MIN
MAX
LIMITS
3.3V ± 10%
MIN
MAX
UNIT
XTAL1
UART Crystal Frequency
24
MHz
ECLK
External Clock Frequency
32
50
64
MHz
TECLK
External Clock Time Period
15
10
7
ns
TAS
Address Setup Time (16 Mode)
0
ns
TAH
Address Hold Time (16 Mode)
0
ns
TCS
Chip Select Width (16 Mode)
100
65
50
ns
TRD
IOR# Strobe Width (16 Mode)
100
65
50
ns
TDY
Read Cycle Delay (16 Mode)
100
65
50
ns
TRDV
Data Access Time (16 Mode)
95
60
45
ns
TDD
Data Disable Time (16 Mode)
15
ns
TWR
IOW# Strobe Width (16 Mode)
100
65
50
ns
TDY
Write Cycle Delay (16 Mode)
100
65
50
ns
TDS
Data Setup Time (16 Mode)
15
10
ns
TDH
Data Hold Time (16 Mode)
3
ns
TADS
Address Setup (68 Mode)
0
ns
TADH
Address Hold (68 Mode)
0
ns
TRWS
R/W# Setup to CS# (68 Mode)
0
ns
TRDA
Data Access Time (68 mode)
95
60
45
ns
TRDH
Data Disable Time (68 mode)
15
ns
TWDS
Write Data Setup (68 mode)
15
10
ns
TWDH
Write Data Hold (68 Mode)
3
5
ns
TRWH
CS# De-asserted to R/W# De-
asserted (68 Mode)
3
ns
TCSL
CS# Strobe Width (68 Mode)
100
65
50
ns
TCSD
CS# Cycle Delay (68 Mode)
100
65
50
ns
TWDO
Delay From IOW# To Output
50
ns
TMOD
Delay To Set Interrupt From MODEM
Input
50
ns
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