MIC2563A Ver la hoja de datos (PDF) - Micrel
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MIC2563A Datasheet PDF : 12 Pages
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MIC2563A
A
B
VPP
Enable
0
VPP to 3.3V VPP to 12V
C
DE
VPP to 3.3V
VPP
OFF
VPP to 5V
F
VPP to 12V
t7
t9
t8
12V
Micrel
G
VPP to 5V
t10
H
J
K
VPP OFF VPP to 12V
VPP OFF
t13
t6
t16
VPP
Output
t4
t1
5V
3.3V
t2
t11
t5
t14
t3
t15
t12
0
Figure 1. MIC2563A VPP Timing Diagram
VPP Enable is shown generically: refer to “MIC2563A-0 and MIC2563A-1 Control Logic Tables.” At time “A,” VPP = 3.3V is
selected. At “B,” VPP is set to 12V. At “C,” VPP = 3.3V (from 12V). At “D,” VPP is disabled. At “E,” VPP is programmed to 5V.
At “F,” VPP is set to 12V. At “G,” VPP is programmed to 5V. At “H,” VPP is disabled. At “J,” VPP is set to 12V. And at “K,” VPP
is again disabled. RL = 100Ω for all measurements. Load capacitance is negligible.
A
VCC
Enable
0
VCC to 3.3V
5V
3.3V
VCC
Output
t1
t3
0
B
C
VCC OFF
VCC to 5V
t7
t5
t2
t4
D
VCC OFF
t8
t6
Figure 2. MIC2563A VCC Timing Diagram
VCC Enable is shown generically: refer to “MIC2563A-0 and MIC2563A-1 Control Logic Tables” for specific control logic input.
At time “A,” VCC is programmed to 3.3V. At “B,” VCC is disabled. At “C,” VCC is programmed to 5V. And at “D,” VCC is disabled.
RL = 10Ω.
March 2004
5
M9999-033004
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