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參數(shù)資料
| 型號： | SAF-XC164LM-4F20F |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 0.50 MM PITCH, GREEN, PLASTIC, TQFP-64 |
| 文件頁數(shù)： | 52/61頁 |
| 文件大?。?/td> | 1790K |
| 代理商： | SAF-XC164LM-4F20F |
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XC164LM
Derivatives
Electrical Parameters
Data Sheet
54
V1.2, 2007-03
4.3.2
On-chip Flash Operation
The XC164LM’s Flash module delivers data within a fixed access time (see Table 15).
Accesses to the Flash module are controlled by the PMI and take 1+WS clock cycles,
where WS is the number of Flash access waitstates selected via bitfield WSFLASH in
register IMBCTRL. The resulting duration of the access phase must cover the access
time
t
ACC of the Flash array. The required Flash waitstates depend on the actual system
frequency.
The Flash access waitstates only affect non-sequential accesses. Due to prefetching
mechanisms, the performance for sequential accesses (depending on the software
structure) is only partially influenced by waitstates.
In typical applications, eliminating one waitstate increases the average performance by
5% … 15%.
Example: For an operating frequency of 40 MHz (clock cycle = 25 ns), the Flash
accesses must be executed with 1 waitstate: ((1+1)
× 25 ns) ≥ 50 ns.
Table 16 indicates the interrelation of waitstates and system frequency.
Note: The maximum achievable system frequency is limited by the properties of the
respective derivative, i.e. 40 MHz (or 20 MHz for XC164LM-xF20F devices).
Table 15
Flash Characteristics (Operating Conditions apply)
Parameter
Symbol
Limit Values
Unit
Min.
Typ.
Max.
Flash module access time
t
ACC
CC ––501)
1) The actual access time is influenced by the system frequency, see Table 16.
ns
Programming time per 128-byte block
t
PR
CC –
22)
2) Programming and erase time depends on the system frequency. Typical values are valid for 40 MHz.
5ms
Erase time per sector
t
ER
CC –
2002)
500
ms
Table 16
Flash Access Waitstates
Required Waitstates
Frequency Range
0 WS (WSFLASH = 00B)
f
CPU ≤ 20 MHz
1 WS (WSFLASH = 01B)
f
CPU ≤ 40 MHz
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAF-XC164TM-4F40F | 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP64 |
| SAF-XC164TM-8F20F | 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP64 |
| SAF-XC2220U-8F66V | 32-BIT, FLASH, 66 MHz, RISC MICROCONTROLLER, PQCC48 |
| SAH-XC2220U-4F66V | 32-BIT, FLASH, 66 MHz, RISC MICROCONTROLLER, PQCC48 |
| SAF-XC2224L-12F66V | 32-BIT, FLASH, 66 MHz, RISC MICROCONTROLLER, PQCC48 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAF-XC164LM-4F20F AA | 功能描述:16位微控制器 - MCU 16-Bit Single-Chip 5V 20MHz Flash RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| SAFXC164LM4F20FAAXT | 制造商:Infineon Technologies AG 功能描述:MCU 16-Bit XC166 CISC/DSP/RISC 32KB Flash 2.5V/5V 64-Pin TQFP |
| SAF-XC164LM-4F40F | 制造商:Infineon Technologies AG 功能描述:16BIT MCU 32K FLASH SMD 164LM-4 |
| SAF-XC164LM-4F40F AA | 功能描述:16位微控制器 - MCU 16-Bit Single-Chip 5V 40MHz Flash RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| SAFXC164LM4F40FAAXT | 制造商:Infineon Technologies AG 功能描述:MCU 16-Bit XC166 CISC/DSP/RISC 32KB Flash 2.5V/5V 64-Pin TQFP |
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