CLCL for fck
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� ATMEGA8HVA-4CKU
寤犲晢锛� Atmel
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 83/196闋�(y猫)
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� MCU AVR 8K FLASH 4MHZ 36-LGA
鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� MCU Product Line Introduction
megaAVR Introduction
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 364
绯诲垪锛� AVR® ATmega
鏍稿績铏曠悊鍣細 AVR
鑺珨灏哄锛� 8-浣�
閫熷害锛� 4MHz
閫ｉ€氭€э細 SPI
澶栧湇瑷�(sh猫)鍌欙細 娆犲妾㈡脯(c猫)/寰�(f霉)浣嶏紝POR锛孭WM锛學DT
杓稿叆/杓稿嚭鏁�(sh霉)锛� 7
绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲忥細 8KB锛�4K x 16锛�
绋嬪簭瀛樺劜(ch菙)鍣ㄩ(l猫i)鍨嬶細 闁冨瓨
EEPROM 澶�?銆�?/td> 256 x 8
RAM 瀹归噺锛� 512 x 8
闆诲 - 闆绘簮 (Vcc/Vdd)锛� 1.8 V ~ 9 V
鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒锛� A/D 5x12b
鎸暕鍣ㄥ瀷锛� 澶栭儴
宸ヤ綔婧害锛� -20°C ~ 85°C
灏佽/澶栨锛� 36-LGA
鍖呰锛� 鎵樼洡(p谩n)
閰嶇敤锛� ATSTK600-ND - DEV KIT FOR AVR/AVR32
ATSTK500-ND - PROGRAMMER AVR STARTER KIT
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173
8024A鈥揂VR鈥�04/08
ATmega8HVA/16HVA
Note:
1. 2.2 t
CLCL for fck < 12 MHz, 3 tCLCL for fck >= 12 MHz
29.8.2
High-voltage Serial Programming
Figure 29-4. High-voltage Serial Programming Timing
Table 29-8.
Serial Programming Characteristics, T
A = -10掳C to 70掳C, VCC = 3.0 - 5.5V (Unless Otherwise Noted)
Symbol
Parameter
Min
Typ
Max
Units
1/tCLCL
Oscillator Frequency (ATmega8HVA/16HVA)
0
4
MHz
tCLCL
Oscillator Period (ATmega8HVA/16HVA)
250
ns
tSHSL
SCK Pulse Width High
2.2 tCLCL
tSLSH
SCK Pulse Width Low
2.2 tCLCL
tOVSH
MOSI Setup to SCK High
tCLCL
tSHOX
MOSI Hold after SCK High
2 tCLCL
tSLIV
SCK Low to MISO Valid
15
ns
Table 29-9.
High-voltage Serial Programming Characteristics T
A = 25掳C 卤 10%, VCC = 3.3V 卤
10% (Unless otherwise noted)
Symbol
Parameter
Min
Typ
Max
Units
tSHSL
SCI (PC0) Pulse Width High
1/fck
ns
tSLSH
SCI (PC0) Pulse Width Low
1/f
ck
ns
tIVSH
SDI (PB2), SII (PB3) Valid to SCI (PC0) High
50
ns
tSHIX
SDI (PB2), SII (PB3) Hold after SCI (PC0) High
50
ns
tSHOV
SCI (PC0) High to SDO (PB1) Valid
16
ns
tWLWH_PFB
Wait after Instr. 3 for Write Fuse Bits
2.5
ms
SDI , SII
SDO
SCI
t
IVSH
t
SHSL
t
SLSH
t
SHIX
t
SHOV
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