DS80CH11 Maxim, DS80CH11 Datasheet - Page 76

• Manufacturer Part Number: DS80CH11
• Description: The system energy manager is a highly integrated microcontroller that provides several key features for systems including key scanning and control, battery and power management, as well as two 2-Wire serial I/O Ports
• Manufacturer: Maxim

7. During a 0 to 1 transition, a one–shot drives the ports hard for two oscillator clock cycles. This measurement
8. Ports 1, 2, and 3 source transition current when being pulled down externally. Current reaches its maximum at
9. 0.45<V
10. 0.45<V
13.3 MICROCONTROLLER AC ELECTRICAL
CHARACTERISTICS
13.3.1 EXTERNAL PROGRAM MEMORY
CHARACTERISTICS
NOTES:
1. All signals rated over operating temperature.
2. All signals characterized with load capacitance of 80 pF except Port 0, ALE, PSEN, RD and WR with 100 pF.
3. Interfacing to memory devices with float times (turn off times) over 25 ns may cause contention. This will not dam-
DS80CH11
011200 76/88
PARAMETER
PARAMETER
Oscillator Frequency
ALE Pulse Width
Port 0 Address Valid to ALE Low
Address Hold after ALE Low
ALE Low to Valid Instruction In
ALE Low to PSEN Low
PSEN Pulse Width
PSEN Low to Valid Instruction In
Input Instruction Hold after PSEN
Input Instruction Float after PSEN
Port 0 Address to Valid
Instruction In
Port 2 Address to Valid
Instruction In
PSEN Low to Address Float
reflects port in transition mode. In addition, this specification applies to any of the Port 6.0–Port 6.3 pins when
the associated PWM channel is enabled.
approximately 2V.
occurs near the input transition point of the latch, approximately 2V.
age the parts, but will cause an increase in operating current.
IN
IN
<V
<V
CC
CC
. Not a high impedance input. This port is a weak address holding latch in Bus Mode. Peak current
. RST=V
CC
. This condition mimics operation of pins in I/O mode.
SYMBOL
SYMBOL
1/t
t
t
t
t
t
t
t
LLAX1
t
t
t
t
t
AVIV1
AVIV2
PLPH
LHLL
AVLL
LLPL
PLAZ
PLIV
PXIX
PXIZ
LLIV
CLCL
MIN
55
15
15
15
75
0
0
25 MHz
MAX
100
115
25
80
60
35
0
(3t
(t
(t
(t
2t
CLCL
CLCL
CLCL
CLCL
CLCL
VARIABLE CLOCK
MIN
0
0
/2)–5
/2)–5
/2)–5
/2)–5
–5
(0 C to 70 C; V
2.5t
3.5t
2t
3t
t
CLCL
CLCL
CLCL
MAX
CLCL
CLCL
25
0
–20
–5
–20
–20
–25
CC
=5.0
UNITS
UNITS
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
10%)