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參數(shù)資料
| 型號： | FM3316-GTR |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| 封裝： | GREEN, MO-012AB, SOIC-14 |
| 文件頁數(shù)： | 15/28頁 |
| 文件大?。?/td> | 320K |
| 代理商： | FM3316-GTR |
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FM33256/FM3316 SPI Companion w/ FRAM
Rev. 2.0
Feb. 2009
Page 22 of 28
After the op-code and address are issued, the device
drives out the read data on the next 8 clocks. The SI
input is ignored during read data bytes. Subsequent
bytes are data bytes, which are read out sequentially.
Addresses are incremented internally as long as the
bus master continues to issue clocks and /CS is low.
If the last address is reached (e.g. 7FFFh on the
FM33256), the counter will roll over to 0000h. Data
is read MSB first. The rising edge of /CS terminates a
READ operation.
A read operation is shown in
Figure 20.
CS
SCK
SI
SO
0
1
234
56
7
00
Hi-Z
1
MSB
LSB
012
34
6
7
X
0
Op-code
16-bit Address
0
1
11
12
13
14
01
23
45
67
7
Data In
0
1
2
3
4
5
6
MSB
LSB
7
0
00
0
Figure 19. Memory Write
CS
SCK
SI
SO
0
1
234
56
7
00
Hi-Z
1
MSB
LSB
012
34
6
7
X
0
Op-code
16-bit Address
0
1
11
12
13
14
01
23
45
67
7
Data Out
0
1
2
3
4
5
6
MSB
LSB
7
0
1
00
0
Figure 20. Memory Read
Addressing F-RAM Array in the FM33xx Family
The FM33xx devices include 256Kb and 16Kb memory densities. The following 2-byte address field is shown for
each density.
Table 7. Two-Byte Memory Address
Part #
1
st Address Byte
2
nd Address Byte
FM33256
x
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
FM3316
x
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
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| FM33256-G | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| FM4005-G | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FM33256 | 制造商:RAMTRON 制造商全稱:RAMTRON 功能描述:3V Integrated Processor Companion with Memory |
| FM33256_09 | 制造商:RAMTRON 制造商全稱:RAMTRON 功能描述:3V Integrated Processor Companion with Memory |
| FM33256B | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:3V Integrated Processor Companion with F-RAM |
| FM33256B-G | 功能描述:實時時鐘 256Kb F-RAM Processor Companion RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| FM33256B-GTR | 功能描述:F-RAM 256Kb F-RAM Processor Companion RoHS:否 存儲容量:512 Kbit 組織:64 K x 8 接口:SPI 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube 制造商:Cypress Semiconductor |
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