EM6520 EM Microelectronic, EM6520 Datasheet - Page 7

• Manufacturer Part Number: EM6520
• Description: MFP version of EM6620 Ultra Low Power Microcontroller 4x8 LCD Driver
• Manufacturer: EM Microelectronic

EM6520
3
Power Supply
The EM6520 is supplied by a single external power supply between V
(Vbat) and V
(ground). A built-in
DD
SS
voltage regulator generates Vreg providing regulated voltage for the oscillator and the internal logic. The output
drivers are supplied directly from the external supply V
. A internal power configuration is shown in Figure 5.
DD
Figure 5. Internal Power Supply Connection
T erm inal
V bat
T erm inal
1kO h m
V reg
A ll P ad
input &
R ef. Logic
output
C ore Logic,R A M ,
buffers,
LC D Logic,
S V LD ,
O scillator
E E P R O M
V oltage m ultiplier,
LC D outputs
R ef. LC D
03/02 REV. D/449
7
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