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参数资料
| 型号： | MTA85812S-10I/SS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 10 MHz, RISC MICROCONTROLLER, PDSO20 |
| 封装： | 0.209 INCH, PLASTIC, SSOP-20 |
| 文件页数： | 31/72页 |
| 文件大小： | 760K |
| 代理商： | MTA85812S-10I/SS |
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1995 Microchip Technology Inc.
DS40115C-page 37
MTA85XXX
T0CKI Input Timing,
With prescaler
T0CKI High Pulse Width
TRTH
10*
ns
Note 3
T0CKI Low Pulse Width
TRTL
10*
ns
Note 3
T0CKI period
TRTP
TCY +40*
N
ns
Note 3. Where N = prescale
value (2,4,...,256)
Watchdog Timer Time-out Period,
No prescaler
TWDT
9*
18*
30*
ms
VDD = 5.0V
Oscillation Start-up Timer Period TOST
9*
18*
30*
ms
VDD = 5.0V
I/O Timing
I/O pin input valid before
CLKOUT
↑ (RC mode)
TDS
0.25 TCY+30*
ns
I/O Pin input hold after CLKOUT
↑
(RC mode)
TDH
0*
ns
I/O pin output valid after CLKOUT
↓
(RC Mode)
TPD
40*
ns
I/O pin input valid before OSC
↑
(I/O setup time)
TioV2osH
TBD
ns
OSC1
↑ to I/O pin input invalid
(I/O holdup time)
TosH2ioL
TBD
ns
OSC1
↑ to I/O pin output valid
TosH2ioV
TBD
ns
I/O pin output rise time
TioR
TBD
ns
I/O pin output fall time
TioF
TBD
ns
Capacitive loading specs on
output pins
OSC2 pin
COSC215
pF
In Xt, HS or LP modes when
external clock is used to drive
OSC1
All I/O pins
CIO
50
pF
Excludes RB7 on MTA85X1X
devices
AC CHARACTERISTICS
Standard Operating Conditions
Operating temperature
-40
°C ≤ TA ≤ +85°C for industrial
Characteristic
Sym
Min
Typ
Max
Units
Conditions
* Guaranteed by characterization but not tested.
Note 1: Data in the column labeled "Typ" is based on characterization results at 25
°C. This data is for design guidance
only and is not tested for, or guaranteed by Microchip Technology.
Note 2: Instruction cycle period (TCY) equals four times the input oscillator time base period. All specified values are
based on characterization data for that particular oscillator type under standard operating conditions with the
device executing code. Exceeding these specified limits may result in unstable oscillator operation and/or
higher than expected current consumption. All devices are tested to operate at "minimum" values with an
external clock applied to the OSC1 pin. When an external clock input is used, the "maximum" cycle time limit
is "DC" (no clock) for all devices.
Note 3: For a detailed explanation of T0CKI input clock requirements see microcontroller datasheet Section 5.2.1.
Note 4: Clock-in high-time is the duration for which clock input is at VIHOSC or higher.
Clock-in low-time is the duration for which clock input is at VILOSC or lower.
Note 5: This HS specification is only for the -20 device. The -10 device has a maximum of 10 MHz and the -04 device
has a maximum of 4 MHz.
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