TS80C51RA2 Atmel Corporation, TS80C51RA2 Datasheet - Page 59

• Manufacturer Part Number: TS80C51RA2
• Description: High Performance 8-bit Microcontroller
• Manufacturer: Atmel Corporation

Notes:
4188A–8051–10/02
1. I
2. Idle I
3. Power-down I
4. Capacitance loading on Ports 0 and 2 may cause spurious noise pulses to be superimposed on the V
5. Typicals are based on a limited number of samples and are not guaranteed. The values listed are at room temperature and
6. Under steady state (non-transient) conditions, I
7. For other values, please contact your sales office.
8. Operating I
V
V
0.5 V; XTAL2 N.C; Port 0 = V
ure 23.).
and 3. 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 cases (capacitive loading 100pF), the noise pulse on the ALE line may exceed
0.45V with maxi V
5V.
Maximum I
Maximum I
Port 0: 26 mA
Ports 1, 2, 3 and 4 and 5 when available: 15 mA
Maximum total I
If I
than the listed test conditions.
V
V
would be slightly higher if a crystal oscillator is used. Measurements are made with OTP products when possible, which is
the worst case.
CC
SS
IH
SS
IH
OL
under reset is measured with all output pins disconnected; XTAL1 driven with T
= V
= V
+ 0.5 V,
+ 0.5 V,
CC
exceeds the test condition, V
CC
CC
is measured with all output pins disconnected; XTAL1 driven with T
- 0.5V; XTAL2 N.C.; EA = Port 0 = V
- 0.5V; XTAL2 N.C.; EA = RST = Port 0 = V
OL
OL
CC
CC
per port pin: 10 mA
per 8-bit port:
is measured with all output pins disconnected; XTAL1 driven with T
OL
is measured with all output pins disconnected; EA = V
OL
for all output pins: 71 mA
peak 0.6V. A Schmitt Trigger use is not necessary.
Table 35. DC Parameters for Low Voltage
Figure 20. I
Symbol Parameter
CC
idle
I
CC
; EA = RST = V
OL
CLOCK
SIGNAL
Power Supply Current Maximum
values, X1 mode:
may exceed the related specification. Pins are not guaranteed to sink current greater
CC
(NC)
Test Condition, under reset
V
CC
CC
SS
OL
; RST = V
(see Figure 22.).
must be externally limited as follows:
RST
XTAL2
XTAL1
V
(7)
SS
CC
. I
CC
SS
V
EA
CC
. The internal ROM runs the code 80 FE (label: SJMP label). I
would be slightly higher if a crystal oscillator used..
I
P0
CC
V
CC
V
CC
SS
Min
, PORT 0 = V
CLCH
, T
All other pins are disconnected.
CLCH
Typ
CHCL
CLCH
, T
CC
, T
= 5 ns, V
; XTAL2 NC.; RST = V
CHCL
CHCL
0.15 Freq
@12MHz
@16MHz
(MHz) +
Max
0.2
2.6
2
= 5 ns (see Figure 24.), V
= 5 ns (see Figure 24.), V
TS8xC51Rx2
IL
= V
OL
Unit
mA V
SS
s of ALE and Ports 1
+ 0.5 V, V
Test Conditions
CC
= 3.3 V
SS
IH
(see Fig-
= V
(2)
CC
IL
IL
59
CC
=
=
-