參數(shù)資料
型號(hào): ADUC836BCP
廠商: ANALOG DEVICES INC
元件分類: 微控制器/微處理器
英文描述: MicroConverter, Dual 16-Bit-ADCs with Embedded 62 kB Flash MCU
中文描述: 8-BIT, FLASH, 12.58 MHz, MICROCONTROLLER, QCC56
封裝: 8 X 8 MM, ROHS COMPLIANT, MO-220-VLLD-2, LFCSP-56
文件頁數(shù): 70/80頁
文件大?。?/td> 5913K
代理商: ADUC836BCP
ADuC836
TIMING SPECIFICATIONS
1, 2, 3
–70–
(AV
DD
= 2.7 V to 3.6 V or 4.75 V to 5.25 V, DV
DD
= 2.7 V to 3.6 V or 4.75 V to 5.25 V;
all specifications T
MIN
to T
MAX
, unless otherwise noted.)
32.768 kHz External Crystal
Parameter Min Typ Max Unit
CLOCK INPUT (External Clock Driven XTAL1)
t
CK
XTAL1 Period 30.52
s
t
CKL
XTAL1 Width Low 6.26
s
t
CKH
XTAL1 Width High 6.26
s
t
CKR
XTAL1 Rise Time 9
s
t
CKF
XTAL1 Fall Time 9
s
1/t
CORE
ADuC836 Core Clock Frequency
4
0.098 12.58 MHz
t
CORE
ADuC836 Core Clock Period
5
0.636
s
t
CYC
ADuC836 Machine Cycle Time
6
0.95 7.6 122.45
s
NOTES
1
AC inputs during testing are driven at DV
DD
– 0.5 V for a Logic 1, and 0.45 V for a Logic 0. Timing measurements are made at V
IH
min for a Logic 1, and V
IL
max for a
Logic 0, as shown in Figure 70.
2
For timing purposes, a port pin is no longer floating when a 100 mV change from load voltage occurs. A port pin begins to float when a 100 mV change from the loaded
V
OH
/V
OL
level occurs, as shown in Figure 70.
3
C
LOAD
for Port 0, ALE,
PSEN
outputs = 100 pF; C
LOAD
for all other outputs = 80 pF, unless otherwise noted.
4
ADuC836 internal PLL locks onto a multiple (384 times) the external crystal frequency of 32.768 kHz to provide a stable 12.583 MHz internal clock for the system.
The core can operate at this frequency or at a binary submultiple called Core_Clk, selected via the PLLCON SFR.
5
This number is measured at the default Core_Clk operating frequency of 1.57 MHz.
6
ADuC836 Machine Cycle Time is nominally defined as 12/Core_Clk.
t
CKH
t
CKL
t
CK
t
CKF
t
CKR
Figure 69. XTAL1 Input
DV
DD
– 0.5V
0.45V
0.2DV
+ 0.9V
TEST POINTS
0.2DV
DD
0.1V
V
LOAD
– 0.1V
V
LOAD
V
LOAD
+ 0.1V
TIMING
REFERENCE
POINTS
V
LOAD
– 0.1V
V
LOAD
V
LOAD
+ 0.1V
Figure 70. Timing Waveform Characteristics
REV. A
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