TSC87C52-12CAB TEMIC [TEMIC Semiconductors], TSC87C52-12CAB Datasheet - Page 18

• Manufacturer Part Number: TSC87C52-12CAB
• Description: CMOS 0 to 33 MHz Programmable 8-bit Microcontroller
• Manufacturer: TEMIC [TEMIC Semiconductors]

18
TSC87C52
AC Parameters
Explanation of the AC Symbols
Each timing symbol has 5 characters. The first character is always a “T” (stands for time). The other characters,
depending on their positions, stand for the name of a signal or the logical status of that signal. The following is a list
of all the characters and what they stand for.
Example:
T
T
(Load Capacitance for PORT 0, ALE and PSEN = 100pf; Load Capacitance for all other outputs = 80 pF.)
External Program Memory Characteristics
External Program Memory Read Cycle
A
A
= 0 to +70 C; VSS = 0V VCC = 5V 10%; 0 to 12MHz
= –40 C to +85 C; VSS = 0V; VCC = 5V 10%; F = 0 to 12MHz.
PORT 0
PORT 2
Symbol
Symbol
TLLAX
TLHLL
TPXAV
TPXAV
TAVLL
TPLPH
TLLIV
TLLPL
TPXIX
TAVIV
TPLIV
TPXIZ
PSEN
ALE
INSTR IN
OR SFR–P2
ADDRESS
TAVLL = Time for Address Valid to ALE Low.
TLLPL = Time for ALE Low to PSEN Low.
ALE pulse width
Address Valid to ALE
Address Hold After ALE
ALE to Valid Instruction In
ALE to PSEN
PSEN Pulse Width
PSEN to Valid Instruction In
Input Instruction Hold After PSEN
Input Instruction FloatAfter PSEN
PSEN to Address Valid
Address to Valid Instruction In
PSEN Low to Address Float
TLHLL
TLLAX
TAVLL
Parameter
Parameter
A0–A7
TAVIV
ADDRESS A8–A15
TLLIV
TLLPL
TPLAZ
TPLIV
Preliminary
TPLPH
INSTR IN
TPXIX
12 TCLCL
2TCLCL – 40
3TCLCL – 45
TCLCL – 40
TCLCL – 30
TCLCL – 30
TCLCL – 8
Min
0
TPXIZ
TPXAV
0 to 12MHz
A0–A7
4TCLCL – 100
3TCLCL – 105
5TCLCL – 105
TCLCL – 25
ADDRESS A8–A15
Max
10
Rev. C – 10 Sept 1997
INSTR IN
MATRA MHS
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns