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PDF UPD784916BGF Data sheet ( Hoja de datos )

Número de pieza UPD784916BGF
Descripción 16-BIT SINGLE-CHIP MICROCONTROLLERS
Fabricantes NEC 
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD784915B, 784916B
16-BIT SINGLE-CHIP MICROCONTROLLERS
DESCRIPTION
The µPD784915B, 784916B are members of the NEC 78K/IV Series of microcontrollers equipped with a high-
speed 16-bit CPU and are versions with improved electrical characteristics of the µPD784915A, 784916A of the
µPD784915 Subseries.
This series contains many peripheral hardware units ideal for VCR control, such as a multi-function timer unit
(super timer unit) suitable for software servo control and VCR analog circuits.
A one-time PROM version of the µPD784916B, the µPD78P4916, is also available.
Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before
designing.
µPD784915 Subseries User’s Manual - Hardware: U10444E
78K/IV Series User’s Manual - Instruction: U10905E
FEATURES
• High instruction execution speed realized by 16-bit CPU core
• Minimum instruction execution time: 250 ns (with 8-MHz internal clock)
• High internal memory capacity
Part Number
µPD784915B
µPD784916B
ROM
49152 bytes
63488 bytes
RAM
1280 bytes
• VCR analog circuits conforming to VHS Standard
• CTL amplifier
• RECCTL driver (rewritable)
• CFG amplifier
• DFG amplifier
• DPG comparator
• DPFG separation circuit (ternary separation circuit)
• Reel FG comparator (2 channels)
• CSYNC comparator
• Timer unit (super timer unit) for servo control
• Serial interface: 2 channels (3-wire serial I/O)
• A/D converter: 12 channels (conversion time: 10 µs)
• Low-frequency oscillation mode: main system clock frequency = internal clock frequency
• Low-power dissipation mode: CPU can operate with a subsystem clock.
• Supply voltage range: VDD = 2.7 to 5.5 V
• Hardware watch function: watch operation at low voltage (VDD = 2.7 V (MIN.)) and low current
APPLICATIONS
Control system/servo/timer of VCR
Unless mentioned otherwise, the µPD784916B is described as the representative product.
The information in this document is subject to change without notice
Document No. U13118EJ1V0DS00 (1st edition)
Date Published January 1998 N CP(K)
Printed in Japan
©
11999986

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UPD784916BGF pdf
PIN CONFIGURATION (Top View)
100-pin plastic QFP (14 x 20 mm)
µPD784915BGF-xxx-3BA
µPD784916BGF-xxx-3BA
µPD784915B, 784916B
P64
P65/HWIN
P66/PWM4
P67/PWM5
P60/STRB/CLO
P61/SCK1/BUZ
P62/SO1
P63/SI1
PWM0
PWM1
SCK2
SO2
SI2/BUSY
VDD
XT1
XT2
VSS
X2
X1
RESET
IC
PTO02
PTO01
PTO00
P87/PTO11
P86/PTO10
P85/PWM3
P84/PWM2
P83/ROTC
P82/HASW
10099 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
1 80
2 79
3 78
4 77
5 76
6 75
7 74
8 73
9 72
10 71
11 70
12 69
13 68
14 67
15 66
16 65
17 64
18 63
19 62
20 61
21 60
22 59
23 58
24 57
25 56
26 55
27 54
28 53
29 52
30 51
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
ANI9
ANI8
P77/ANI7
P76/ANI6
P75/ANI5
P74/ANI4
P73/ANI3
P72/ANI2
P71/ANI1
P70/ANI0
AVREF
AVDD2
P96
P95/KEY4
P94/KEY3
P93/KEY2
P92/KEY1
P91/KEY0
P90/ENV
NMI
INTP0
INTP1
INTP2
P00
P01
P02
P03
P04
P05
P06
Caution Directly connect the IC (Internally Connected) pin to VSS.
5

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UPD784916BGF arduino
µPD784915B, 784916B
1. DIFFERENCES AMONG µPD784915 SUBSERIES PRODUCTS
The µPD784915 Subseries consists of the six products listed in Table 1-1. The µPD784915A is a low-cost process-
shrinked version of the µPD784915. The µPD784916A expands the internal ROM capacity of the µPD784915 to 62
Kbytes. The µPD784915B and 784916B feature improved electrical characteristics compared to the µPD784915A
and 784916A.
The µPD78P4916 features writable one-time PROM instead of the mask ROM of the µPD784915, 784915A,
784916A, 784915B, and 784916B. Except for this substitution of PROM for ROM and the fact that PROM capacity
differs from the ROM capacities offered in the other products, the µPD78P4916 has the same functions as those
products.
In switching from the PROM product, used for debugging and testing application systems, to the mask ROM
products for mass production, be careful to check the differences among these products.
For details on the CPU functions and the internal hardware, refer to µPD784915 Subseries User’s Manual —
Hardware (U10444E).
Table 1-1. Differences among µPD784915 Subseries Products
Item
Internal ROM
Internal RAM
Internal memory capacity
selection register (IMS)
Electrical characteristics
Pin connections
µPD784915,
784915A
Mask ROM
49152 bytes
1280 bytes
Not provided
µPD784916A
µPD784915B
µPD784916B
63488 bytes
49152 bytes
63488 bytes
µPD78P4916
63232 bytes Note
2048 bytesNote
Provided
The electrical characteristics of the µPD784915A/784916A, the µPD784915B/784916B,
and the µPD78P4916 differ with respect to the items listed below.
• P40 to P47, P50 to P57: Low-level input voltage
• VDD supply current
• Data hold current
• CTL amplifier: Phase signal elimination ratio
• CFG amplifier: CFGAMPO low-level output current
For details, refer to the data sheet of each product.
µPD784915A/784916A Data Sheet (U11022J)
µPD784915B/784916B Data Sheet (This document)
µPD78P4916
Data Sheet (U11045J)
In the µPD78P4916, pin function for PROM read/write has been added.
Note The internal PROM and internal RAM capacities can be changed using the internal memory selection register
(IMS).
Caution
The PROM version and mask ROM version differ in noise immunity and noise radiation, etc. When
considering replacing a PROM version with a mask ROM version when switching from preproduction
to volume production, perform sufficient evaluation using a CS version (not ES version) of the
mask ROM version.
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