SAB80C515-16-N SIEMENS [Siemens Semiconductor Group], SAB80C515-16-N Datasheet - Page 39

• Manufacturer Part Number: SAB80C515-16-N
• Description: 8-Bit CMOS Single-Chip Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
Notes for page 36 and 37:
1) Capacitive loading on ports 0 and 2 may cause spurious noise pulses to be
2) Capacitive loading on ports 0 and 2 may cause the VOH on ALE and PSEN to
3) Power-down I
4) I
5) I
6) I
superimposed on the V
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.
Then, it may be desirable to qualify ALE with a Schmitttrigger, or use an address latch
with a Schmitttrigger strobe input.
momentarily fall below the 0.9 V
XTAL1 = N.C.; XTAL2 = V
to the figure below; XTAL1 = N.C.; EA = Port 0 = Port 6 = V
pins are disconnected. I
figure below; XTAL1 = N.C.; EA = V
disconnected; all on-chip peripherals are disabled.
Active mode: I
Idle mode: I
where f
I
CC
CC
CC
CC max
(active mode) is measured with: XTAL2 driven with the clock signal according
(idle mode) is measured with: XTAL2 driven with the clock signal according to the
at other frequencies is given by:
OSC
is given in mA and measured at V
CC max
is the oscillator frequency in MHz.
CC
CC max
is measured with: EA = Port 0 = Port 6 = V
(mA) = 0.88
(mA) = 2.67
OL
CC
of ALE and ports 1, 3, 4 and 5. The noise is due to external bus
SS
might be slightly higher if a crystal oscillator is used.
; RESET = V
CC
f
OSC
specification when the address bits are stabilizing.
SS
f
OSC
; Port 0 = Port 6 V
(MHz) + 2.50
38
CC
CC
(MHz) + 3.00
; V
= 5 V (see also notes 4 and 5)
AGND
= V
CC
SS
; RESET = V
; all other pins are disconnected.
CC
CC
; RESET = V
SAB 80C515/80C535
;
CC
; all other pins are
SS
; all other