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| 型號： | SAB80C517A |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-Bit CMOS Single-Chip Microcontroller |
| 中文描述： | 8位CMOS單芯片微控制器 |
| 文件頁數(shù)： | 64/77頁 |
| 文件大?。?/td> | 1358K |
| 代理商： | SAB80C517A |
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SAB 80C517A/83C517A-5
Semiconductor Group
63
1994-05-01
Notes
for page 62:
1) Capacitive loading on ports 0 and 2 may cause spurious noise pulses to be superimposed
on the
V
OL
of ALE and ports 1, 3, 4, 5 and 6. The noise is due to external bus capacitance
discharging into the port 0 and port 2 pins when these pins make 1-to-0 transitions during
bus operation. In the worst case (capacitive loading > 100 pF), the noise pulse on ALE line
may exceed 0.8 V. In such cases it may be desirable to qualify ALE with a schmitt-trigger,
or use an address latch with a schmitt-trigger strobe input.
2) Capacitive loading on ports 0 and 2 may cause the
V
OH
on ALE and
PSEN
to momentarily
fall
below the
0.9
V
CC
specification when the address lines are stabilizing.
3)
I
PD
(Power down mode) is measured with:
EA
=
RESET
=
V
CC;
Port0 = Port7 = Port8 =
V
CC
; XTAL1 = N.C.; XTAL2 =
V
SS
;
PE/SWD
= OWE =
V
SS
;
HWDP
=
V
CC
(Software Power Down mode);
V
ARef
=
V
CC
;
V
AGND
=
V
SS
; all other pins are disconnected. Hardware Powerdown
I
PD
: OWE =
V
CC
or
V
SS
. No certain pin connection for the other pins.
4)
I
CC
(active mode) is measured with:
XTAL2 driven with
t
CLCH,
t
CHCL
= 5 ns,
V
IL
=
V
SS
+ 0.5 V,
V
IH
=
V
CC
– 0.5 V; XTAL1 = N.C.;
EA = PE
/SWD =
V
CC
; Port0 = Port7 = Port8 =
V
CC
;
HWPD
=
V
CC
;
RESET
=
V
SS
all other pins are disconnected.
I
CC
would be slightly higher if a crystal oscillator is
used (appr. 1 mA).
5)
I
CC
(Idle mode) is measured with all output pins disconnected and with all peripherals
disabled; XTAL2 driven with
t
CLCH
,
t
CHCL
= 5 ns,
V
IL
=
V
SS
+ 0.5 V,
V
IH
=
V
CC
– 0.5 V;
XTAL1 = N.C.;
RESET
=
V
CC
;
HWPD
=
V
CC
; Port0 = Port7 = Port8 =
V
CC
;
EA = PE
/SWD =
V
SS
; all other pins are disconnected;
6)
I
CC
(slow down mode) is measured with all output pins disconnected and with all peripher-
als disabled; XTAL2 driven with
t
CLCH,
t
CHCL
= 5 ns,
V
IL
=
V
SS
+ 0.5 V,
V
IH
=
V
CC
– 0.5 V;
XTAL1 = N.C.
;RESET
=
V
CC
;
HWPD
=
V
CC
; Port7 = Port8 =
V
CC
;
EA = PE/SWD
=
V
SS
;
all other pins are disconnected;
7)
I
CC
Max
at other frequencies is given by:
active mode:
I
CC
(max) = 1.50*
f
OSC
+ 10
idle mode:
I
CC
(max) = 1.17*
f
OSC
+ 10
where
f
OSC
is the oscillator frequency in MHz.
I
CC
values are given in mA and
measured at
V
CC
= 5 V.
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| SAB83C517A-5 | 8-Bit CMOS Single-Chip Microcontroller |
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