em6521 EM Microelectronic, em6521 Datasheet - Page 8

• Manufacturer Part Number: em6521
• Description: Mfp Version Of Em6621 Ultra Low Power Microcontroller With 4x20 Lcd Driver
• Manufacturer: EM Microelectronic

3
The EM6521 is supplied by a single external power supply between V
voltage regulator generates V
drivers are supplied directly from the external supply V
F igure 5.
1 0 9 H
Copyright © 2005, EM Microelectronic-Marin SA
Power Supply
R
Figure 5. Internal Power Supply
E E P R O M
T erm inal
buffers,
A ll P ad
input &
S V LD ,
output
V bat
reg
providing regulated voltage for the oscillator and the internal logic. The output
R ef. Logic
R ef. LC D
DD
. The internal power configuration is shown below in
8
M 1B
M 1A
M V reg
V oltage m ultiplier,
C ore Logic,R A M ,
LC D outputs
1kO hm
LC D Logic,
O scillator
DD
(V
BAT
) and V
T erm inal
V reg
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SS
(Ground). A built-in
EM6521