MB87P2020 Datasheet, PDF (276/356 Pages) Fujitsu Component Limited. – Colour LCD/CRT/TV Controller

MB87J2120, MB87P2020-A Hardware Manual
For a given pin the symbol name is expanded by the pin name (e.g. t_OD<Pin>). Sometimes also a shortcut
for the pinname is used but the timing value has a unique name.
Table 2-5: Symbolic names and evaluation conditions
Timing
Input setup time
Input hold time
Output delay time
Output hold time
Symbol
t_S
t_H
t_OD
t_OH
Conditions as described in chapter 2.5.1
1: independent from external capacity
2: max conditions
3: longest path
1: independent from external capacity
2: max conditions
3: longest path
1: separate value for 20pF and 50pF
2: max conditions
3: longest path
1: separate value for 20pF and 50pF
2: min. conditions
3: shortest path
2.5.3 Clock inputs
OSC_IN, OSC_OUT are dedicated ports for crystal oscillator connection. When OSC_IN is used as direct
clock input, the specification applies as stated for the other possible clock inputs.
ULB_CLK, RCLK, VSC_CLKV, DIS_PIXCLK give the ability to feed in an external clock directly. For
usage of different clock inputs see Clock Unit specification.
• DIS_PIXCLK can be configured as input or output
tT
tT
3.3V
80%
50%
20%
0V
t PH
t PL
t CY
Figure 2-2: AC characteristics measurement conditions
• Transition Time t_T max. 2ns
• V_IH = 2.0V, V_IL = 0.8V (3.3V CMOS Interface Input)
Table 2-6: Timing Specification
Clock
Parameter
ULB_CLK
(routed to CLKM,
MCU interface)
ULB Clock Cycle Time
ULB Clock High Pulse Width
ULB Clock Low Pulse Width
Symbol
t_CYU
t_PHU
t_PLU
Min
15.625 ns
7 ns
7 ns
Max
-
-
-
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