參數(shù)資料
型號(hào): CY7C63742-SC
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 12 MHz, RISC MICROCONTROLLER, PDSO24
封裝: 0.300 INCH, PLASTIC, SOIC-24
文件頁(yè)數(shù): 37/48頁(yè)
文件大小: 425K
代理商: CY7C63742-SC
PRELIMINARY
FO R
enCoRe USB CY7C63722/23
CY7C63742/43
42
25.0
Switching Characteristics
Parameter
Description
Min.
Max.
Unit
Conditions
Internal Clock Mode
FICLK
Internal Clock Frequency
5.7
6.3
MHz
Internal Clock Mode enabled
FICLK2
Internal Clock Frequency, USB
mode
5.91
6.09
MHz
Internal Clock Mode enabled, Bit 2 of regis-
ter 0xF8h is set (Precision USB Clocking)
[11]
External Oscillator Mode
TCYC
Input Clock Cycle Time
164.2
169.2
ns
USB Operation, with External ±1.5%
Ceramic Resonator or Crystal
TCH
Clock HIGH Time
0.45 tCYC
ns
TCL
Clock LOW Time
0.45 tCYC
ns
TSTART
Time-out Delay after LVR/BOR
24
60
ms
TWAKE
Internal Wake-up Period
1
5
ms
Enabled Wake-up Interrupt
[12]
TWATCH
WatchDog Timer Period
10.1
14.6
ms
FOSC = 6 MHz
USB Driver Characteristics
TR
Transition Rise Time
75
ns
CLoad = 200 pF (10% to 90%
[4])
TR
Transition Rise Time
300
ns
CLoad = 600 pF (10% to 90%
[4])
TF
Transition Fall Time
75
ns
CLoad = 200 pF (10% to 90%
[4])
TF
Transition Fall Time
300
ns
CLoad = 600 pF (10% to 90%
[4])
TRFM
Rise/Fall Time Matching
80
125
%
tr/tf
[4, 13]
VCRS
Output Signal Crossover Voltage
1.3
2.0
V
CLoad = 200 to 600 pF
[4]
USB Data Timing
TDRATE
Low Speed Data Rate
1.4775
1.5225
Mb/s
Ave. Bit Rate (1.5 Mb/s ±1.5%)
TDJR1
Receiver Data Jitter Tolerance
–75
75
ns
To Next Transition
[14]
TDJR2
Receiver Data Jitter Tolerance
–45
45
ns
For Paired Transitions
[14]
TDEOP
Differential to EOP transition Skew
–40
100
ns
Note 14
TEOPR2
EOP Width at Receiver
670
ns
Accepts as EOP
[14]
TEOPT
Source EOP Width
1.25
1.50
s
TUDJ1
Differential Driver Jitter
–95
95
ns
To next transition, Figure 25-5
TUDJ2
Differential Driver Jitter
–150
150
ns
To paired transition, Figure 25-5
TLST
Width of SE0 during Diff. Transition
210
ns
Non-USB Mode Driver
Characteristics
Note 15
TFPS2
SDATA / SCK Transition Fall Time
50
300
ns
CLoad = 150 pF to 600 pF
SPI Timing
See Figures 25-6 to 25-9
[16]
TSMCK
SPI Master Clock Rate
2
MHz
FCLK/3; see Figure 17-1
TSSCK
SPI Slave Clock Rate
2.2
MHz
TSCKH
SPI Clock High Time
125
ns
High for CPOL=0, Low for CPOL=1
TSCKL
SPI Clock Low Time
125
ns
Low for CPOL=0, High for CPOL=1
TMDO
Master Data Output Time
–25
50
ns
SCK to data valid
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