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參數(shù)資料
| 型號： | CS82C5296 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC UART/BRG 5V 16MHZ 28-PLCC |
| 標(biāo)準(zhǔn)包裝： | 750 |
| 特點： | 單芯片 UART/BRG |
| 通道數(shù)： | 1，UART |
| 規(guī)程： | RS232C |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 帶并行端口： | 是 |
| 帶故障啟動位檢測功能： | 是 |
| 帶調(diào)制解調(diào)器控制功能： | 是 |
| 帶CMOS： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 28-PLCC（11.51x11.51） |
| 包裝： | 帶卷 (TR) |
14
FN2950.3
April 26, 2006
UART Timing Characterization
All parameters listed in this table were laboratory bench characterized at room temperature on a small sample of parts. No guarantee is implied. The main intent here is
to clarify functional operation of the 82C52.
82C52 UART Timing Characterized with IX = External Clock
SYMBOL
PARAMETER
MIN
MAX
UNITS
TEST CONDITIONS
(15)
TS1
CO(IX) Delay from IX
-
30
ns
BRSR Bit D7 = 0
(IX Output)
(16)
TS2
CO (BRG) Delay from IX
-
80
ns
BRSR Bit D7 = 1
(BRG Output)
(17)
TCY
CO (BRG) Clock Cycle Time
62.5
-
ns
BRSR Bit D7 = 1
(BRG Output), Note 1
(18)
TDTX
SDO Delay from CO(BRG) Low
-
30
ns
Note 2
(19)
TWLTL
WR Low to TBRE Low
-
50
ns
Note 3
(20)
TCLTH
CO (BRG) Low to TBRE HIgh
-
50
ns
Notes 3, 4
(21)
TIHF
INTR High on Flag
-
50
ns
Note 5A, 5B
(22)
TIHM
INTR High on MS
-
50
ns
Note 5
(23)
TRLIL
RD Low to INTR Low
-
60
ns
(24)
TCTHX
CTS High to Disable Transmit
4TCY + 10
-
ns
TBR Full, Note 6
(25)
TDRH
CO (BRG) Low to DR High
-
40
ns
Note 7
(26)
TRLDL
RD Low to DR Low
-
50
ns
Note 7
(27)
TWHO
WR High to RTS/DTR Active
-
50
ns
NOTES:
1. Prescaler rate of divide by 1, Divisor Select rate of “external” (divide by 1). The Baud Rate Clock (CO-BRG) operates at 16 times the user
programmed bit rate. For example, at 1200 baud: TCY = 1/(16 x 1200) = 52.1
s.
2. A. With TR (Transmitter Register) initially empty, TDTX occurs from the 5th falling edge of CO(BRG) after WR goes high.
B. With TR initially full, TDTX occurs from the trailing edge of the 16th CO(BRG) in the last Stop bit provided WR went high by the trailing edge
of the 12th CO(BRG) in the last Stop bit.
C. With CTS high (disable transmit) and TBR full, TDTX occurs from the 5th falling edge of CO(BRG) after CTS goes low.
3. TBRE bit D6 in USR is updated each time TBRE changes state.
4. A. With TR initially empty, TCLTH(TBRE) occurs from the 4th falling edge of CO(BRG) after WR goes high.
B. With TR initially full, TCLTH(TBRE) occurs from the trailing edge of the 15th CO(BRG) in the last Stop bit provided WR went high by the
trailing edge of the 12th CO(BRG) in the last Stop bit.
C. With CTS high (disable transmit) and TBR full, TCLTH(TBRE) occurs from the 4th falling edge of CO(BRG) after CTS goes low.
5. A. INT on TC: INTEN enabled; USR bit D5(TC) is updated at this time regardless of interrupt configuration.
- INT on TC occurs from the trailing edge of the 11th CO(BRG) in the last Stop bit if TBR empty at that time.
B. INTR on receive flags OE, FE, PE, and RBRK: INTEN enabled; Respective USR bits updated at this time regardless of interrupt configura-
tion.
- INT on OE, FE, PE, RBRK occurs from the trailing edge of the 11th CO(BRG) in the last Stop bit. To avoid OE, RD(RBR) must go low by
the trailing edge of the 8th CO(BRG) in the last Stop bit.
C. INTR on MS: INTEN and MIEN enabled; USR bit D4(MS) is updated at this time regardless of INTEN/MIEN.
- INTR on MS occurs whenever CTS or DSR input changes state.
6. TCTHX is time before end of last Stop bit by which CTS must be inactive (high) to prevent transmission of the character waiting in TBR.
7. DR bit D7 in USR is updated each time DR changes state. TDRH always from trailing edge of 11th CO(BRG) in last Stop bit.
82C52
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS82C52Z | 功能描述:UART 接口集成電路 A/ANNEAL PERIPH UART /BRG 5V 16MHZ 28PLCC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| CS82C52Z96 | 功能描述:UART 接口集成電路 A/ANNEAL PERIPH UART /BRG 5V 16MHZ 28PLCC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| CS82C54 | 功能描述:計時器和支持產(chǎn)品 PERIPH PRG-CNTR 5V 8MHZ 28PLCC COM RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| CS82C54-1 | 制造商:Intel 功能描述: |
| CS82C54-10 | 功能描述:計時器和支持產(chǎn)品 PERIPH PRG-CNTR 5V 10MHZ 28PLCC COM RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
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