ATtiny28L Atmel Corporation, ATtiny28L Datasheet - Page 53

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ATtiny28L

Manufacturer Part Number
ATtiny28L
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATtiny28L

Flash (kbytes)
2 Kbytes
Pin Count
28
Max. Operating Frequency
4 MHz
Cpu
8-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
11
Ext Interrupts
10
Usb Speed
No
Usb Interface
No
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
0.03
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
1
32khz Rtc
No
Calibrated Rc Oscillator
Yes

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Parallel Programming
Characteristics
1062F–AVR–07/06
Figure 40. Parallel Programming Timing
T
A
(DATA, XA0/1, BS)
Symbol
V
I
t
t
t
t
t
t
t
t
t
t
t
t
PP
DVXH
XHXL
XLDX
XLWL
BVWL
RHBX
WLWH
WLRL
WLRH
XLOL
OLDV
OHDZ
PP
= 25°C ± 10%, V
Data & Contol
RDY/BSY
XTAL1
DATA
Programming Enable Voltage
Programming Enable Current
Data & Control Valid before XTAL1 High
XTAL1 Pulse Width High
Data & Control Hold after XTAL1 Low
XTAL1 Low to WR Low
BS Valid to WR Low
BS Hold after RDY/BSY High
WR Pulse Width Low
WR Low to RDY/BSY Low
WR Low to RDY/BSY High
XTAL1 Low to OE Low
OE Low to DATA Valid
OE High to DATA Tri-stated
Parameter
WR
OE
CC
t
= 5V ± 10%
DVXH
t
XHXL
t
t
t
XLOL
XLDX
XLWL
t
BVWL
t
WLWH
t
WLRL
t
OLDV
11.5
67.0
67.0
67.0
67.0
67.0
67.0
67.0
67.0
Min
0.0
0.5
ATtiny28L/V
20.0
Typ
0.7
t
t
WLRH
OHDZ
t
RHBX
250.0
Max
12.5
20.0
2.5
0.9
Unit
µA
ms
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
V
53

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